280858760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 256

約数和(自身を含む): 851558400

約数和(自身を除く): 570699640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 40, 52, 56, 62, 65, 70, 76, 91, 95, 104, 124, 130, 131, 133, 140, 152, 155, 182, 190, 217, 247, 248, 260, 262, 266, 280, 310, 364, 380, 403, 434, 455, 494, 520, 524, 532, 589, 620, 655, 665, 728, 760, 806, 868, 910, 917, 988, 1048, 1064, 1085, 1178, 1235, 1240, 1310, 1330, 1612, 1703, 1729, 1736, 1820, 1834, 1976, 2015, 2170, 2356, 2470, 2489, 2620, 2660, 2821, 2945, 3224, 3406, 3458, 3640, 3668, 4030, 4061, 4123, 4340, 4585, 4712, 4940, 4978, 5240, 5320, 5642, 5890, 6812, 6916, 7336, 7657, 8060, 8122, 8246, 8515, 8645, 8680, 9170, 9880, 9956, 11284, 11780, 11921, 12445, 13624, 13832, 14105, 15314, 16120, 16244, 16492, 17030, 17290, 17423, 18340, 19912, 20305, 20615, 22568, 23560, 23842, 24890, 28210, 28427, 30628, 32357, 32488, 32984, 34060, 34580, 34846, 36680, 38285, 40610, 41230, 47684, 49780, 52793, 53599, 56420, 56854, 59605, 61256, 64714, 68120, 69160, 69692, 76570, 77159, 81220, 82460, 87115, 95368, 99560, 105586, 107198, 112840, 113708, 119210, 129428, 139384, 142135, 153140, 154318, 161785, 162440, 164920, 174230, 211172, 214396, 226499, 227416, 238420, 258856, 263965, 267995, 284270, 306280, 308636, 323570, 348460, 369551, 385795, 422344, 428792, 452998, 476840, 527930, 535990, 540113, 568540, 617272, 647140, 696920, 739102, 771590, 905996, 1003067, 1055860, 1071980, 1080226, 1132495, 1137080, 1294280, 1478204, 1543180, 1811992, 1847755, 2006134, 2111720, 2143960, 2160452, 2264990, 2700565, 2956408, 3086360, 3695510, 4012268, 4320904, 4529980, 5015335, 5401130, 7021469, 7391020, 8024536, 9059960, 10030670, 10802260, 14042938, 14782040, 20061340, 21604520, 28085876, 35107345, 40122680, 56171752, 70214690, 140429380, 280858760]

約数ペア:

[(1, 280858760), (2, 140429380), (4, 70214690), (5, 56171752), (7, 40122680), (8, 35107345), (10, 28085876), (13, 21604520), (14, 20061340), (19, 14782040), (20, 14042938), (26, 10802260), (28, 10030670), (31, 9059960), (35, 8024536), (38, 7391020), (40, 7021469), (52, 5401130), (56, 5015335), (62, 4529980), (65, 4320904), (70, 4012268), (76, 3695510), (91, 3086360), (95, 2956408), (104, 2700565), (124, 2264990), (130, 2160452), (131, 2143960), (133, 2111720), (140, 2006134), (152, 1847755), (155, 1811992), (182, 1543180), (190, 1478204), (217, 1294280), (247, 1137080), (248, 1132495), (260, 1080226), (262, 1071980), (266, 1055860), (280, 1003067), (310, 905996), (364, 771590), (380, 739102), (403, 696920), (434, 647140), (455, 617272), (494, 568540), (520, 540113), (524, 535990), (532, 527930), (589, 476840), (620, 452998), (655, 428792), (665, 422344), (728, 385795), (760, 369551), (806, 348460), (868, 323570), (910, 308636), (917, 306280), (988, 284270), (1048, 267995), (1064, 263965), (1085, 258856), (1178, 238420), (1235, 227416), (1240, 226499), (1310, 214396), (1330, 211172), (1612, 174230), (1703, 164920), (1729, 162440), (1736, 161785), (1820, 154318), (1834, 153140), (1976, 142135), (2015, 139384), (2170, 129428), (2356, 119210), (2470, 113708), (2489, 112840), (2620, 107198), (2660, 105586), (2821, 99560), (2945, 95368), (3224, 87115), (3406, 82460), (3458, 81220), (3640, 77159), (3668, 76570), (4030, 69692), (4061, 69160), (4123, 68120), (4340, 64714), (4585, 61256), (4712, 59605), (4940, 56854), (4978, 56420), (5240, 53599), (5320, 52793), (5642, 49780), (5890, 47684), (6812, 41230), (6916, 40610), (7336, 38285), (7657, 36680), (8060, 34846), (8122, 34580), (8246, 34060), (8515, 32984), (8645, 32488), (8680, 32357), (9170, 30628), (9880, 28427), (9956, 28210), (11284, 24890), (11780, 23842), (11921, 23560), (12445, 22568), (13624, 20615), (13832, 20305), (14105, 19912), (15314, 18340), (16120, 17423), (16244, 17290), (16492, 17030)]