80709720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:442

約数の個数: 256

約数和(自身を含む): 314496000

約数和(自身を除く): 233786280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 52, 56, 57, 60, 65, 70, 76, 78, 84, 91, 95, 104, 105, 114, 120, 130, 133, 140, 152, 156, 168, 182, 190, 195, 210, 228, 247, 260, 266, 273, 280, 285, 312, 364, 380, 389, 390, 399, 420, 455, 456, 494, 520, 532, 546, 570, 665, 728, 741, 760, 778, 780, 798, 840, 910, 988, 1064, 1092, 1140, 1167, 1235, 1330, 1365, 1482, 1556, 1560, 1596, 1729, 1820, 1945, 1976, 1995, 2184, 2280, 2334, 2470, 2660, 2723, 2730, 2964, 3112, 3192, 3458, 3640, 3705, 3890, 3990, 4668, 4940, 5057, 5187, 5320, 5446, 5460, 5835, 5928, 6916, 7391, 7410, 7780, 7980, 8169, 8645, 9336, 9880, 10114, 10374, 10892, 10920, 11670, 13615, 13832, 14782, 14820, 15171, 15560, 15960, 16338, 17290, 20228, 20748, 21784, 22173, 23340, 25285, 25935, 27230, 29564, 29640, 30342, 32676, 34580, 35399, 36955, 40456, 40845, 41496, 44346, 46680, 50570, 51737, 51870, 54460, 59128, 60684, 65352, 69160, 70798, 73910, 75855, 81690, 88692, 96083, 101140, 103474, 103740, 106197, 108920, 110865, 121368, 141596, 147820, 151710, 155211, 163380, 176995, 177384, 192166, 202280, 206948, 207480, 212394, 221730, 258685, 283192, 288249, 295640, 303420, 310422, 326760, 353990, 384332, 413896, 424788, 443460, 480415, 517370, 530985, 576498, 606840, 620844, 672581, 707980, 768664, 776055, 849576, 886920, 960830, 1034740, 1061970, 1152996, 1241688, 1345162, 1415960, 1441245, 1552110, 1921660, 2017743, 2069480, 2123940, 2305992, 2690324, 2882490, 3104220, 3362905, 3843320, 4035486, 4247880, 5380648, 5764980, 6208440, 6725810, 8070972, 10088715, 11529960, 13451620, 16141944, 20177430, 26903240, 40354860, 80709720]

約数ペア:

[(1, 80709720), (2, 40354860), (3, 26903240), (4, 20177430), (5, 16141944), (6, 13451620), (7, 11529960), (8, 10088715), (10, 8070972), (12, 6725810), (13, 6208440), (14, 5764980), (15, 5380648), (19, 4247880), (20, 4035486), (21, 3843320), (24, 3362905), (26, 3104220), (28, 2882490), (30, 2690324), (35, 2305992), (38, 2123940), (39, 2069480), (40, 2017743), (42, 1921660), (52, 1552110), (56, 1441245), (57, 1415960), (60, 1345162), (65, 1241688), (70, 1152996), (76, 1061970), (78, 1034740), (84, 960830), (91, 886920), (95, 849576), (104, 776055), (105, 768664), (114, 707980), (120, 672581), (130, 620844), (133, 606840), (140, 576498), (152, 530985), (156, 517370), (168, 480415), (182, 443460), (190, 424788), (195, 413896), (210, 384332), (228, 353990), (247, 326760), (260, 310422), (266, 303420), (273, 295640), (280, 288249), (285, 283192), (312, 258685), (364, 221730), (380, 212394), (389, 207480), (390, 206948), (399, 202280), (420, 192166), (455, 177384), (456, 176995), (494, 163380), (520, 155211), (532, 151710), (546, 147820), (570, 141596), (665, 121368), (728, 110865), (741, 108920), (760, 106197), (778, 103740), (780, 103474), (798, 101140), (840, 96083), (910, 88692), (988, 81690), (1064, 75855), (1092, 73910), (1140, 70798), (1167, 69160), (1235, 65352), (1330, 60684), (1365, 59128), (1482, 54460), (1556, 51870), (1560, 51737), (1596, 50570), (1729, 46680), (1820, 44346), (1945, 41496), (1976, 40845), (1995, 40456), (2184, 36955), (2280, 35399), (2334, 34580), (2470, 32676), (2660, 30342), (2723, 29640), (2730, 29564), (2964, 27230), (3112, 25935), (3192, 25285), (3458, 23340), (3640, 22173), (3705, 21784), (3890, 20748), (3990, 20228), (4668, 17290), (4940, 16338), (5057, 15960), (5187, 15560), (5320, 15171), (5446, 14820), (5460, 14782), (5835, 13832), (5928, 13615), (6916, 11670), (7391, 10920), (7410, 10892), (7780, 10374), (7980, 10114), (8169, 9880), (8645, 9336)]