281592220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 216

約数和(自身を含む): 798753312

約数和(自身を除く): 517161092

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 31, 35, 46, 49, 52, 62, 65, 70, 91, 92, 98, 115, 124, 130, 140, 155, 161, 182, 196, 217, 230, 245, 260, 299, 310, 322, 364, 403, 434, 455, 460, 490, 598, 620, 637, 644, 713, 805, 806, 868, 910, 961, 980, 1085, 1127, 1196, 1274, 1426, 1495, 1519, 1610, 1612, 1820, 1922, 2015, 2093, 2170, 2254, 2548, 2821, 2852, 2990, 3038, 3185, 3220, 3565, 3844, 4030, 4186, 4340, 4508, 4805, 4991, 5635, 5642, 5980, 6076, 6370, 6727, 7130, 7595, 8060, 8372, 9269, 9610, 9982, 10465, 11270, 11284, 12493, 12740, 13454, 14105, 14260, 14651, 15190, 18538, 19220, 19747, 19964, 20930, 22103, 22540, 24955, 24986, 26908, 28210, 29302, 30380, 33635, 34937, 37076, 39494, 41860, 44206, 46345, 47089, 49910, 49972, 56420, 58604, 62465, 64883, 67270, 69874, 73255, 78988, 87451, 88412, 92690, 94178, 98735, 99820, 110515, 124930, 129766, 134540, 139748, 146510, 154721, 174685, 174902, 185380, 188356, 197470, 221030, 235445, 249860, 259532, 287339, 293020, 309442, 324415, 349370, 349804, 394940, 437255, 442060, 454181, 470890, 574678, 612157, 618884, 648830, 698740, 773605, 874510, 908362, 941780, 1083047, 1149356, 1224314, 1297660, 1436695, 1547210, 1749020, 1816724, 2011373, 2166094, 2270905, 2448628, 2873390, 3060785, 3094420, 4022746, 4332188, 4541810, 5415235, 5746780, 6121570, 8045492, 9083620, 10056865, 10830470, 12243140, 14079611, 20113730, 21660940, 28159222, 40227460, 56318444, 70398055, 140796110, 281592220]

約数ペア:

[(1, 281592220), (2, 140796110), (4, 70398055), (5, 56318444), (7, 40227460), (10, 28159222), (13, 21660940), (14, 20113730), (20, 14079611), (23, 12243140), (26, 10830470), (28, 10056865), (31, 9083620), (35, 8045492), (46, 6121570), (49, 5746780), (52, 5415235), (62, 4541810), (65, 4332188), (70, 4022746), (91, 3094420), (92, 3060785), (98, 2873390), (115, 2448628), (124, 2270905), (130, 2166094), (140, 2011373), (155, 1816724), (161, 1749020), (182, 1547210), (196, 1436695), (217, 1297660), (230, 1224314), (245, 1149356), (260, 1083047), (299, 941780), (310, 908362), (322, 874510), (364, 773605), (403, 698740), (434, 648830), (455, 618884), (460, 612157), (490, 574678), (598, 470890), (620, 454181), (637, 442060), (644, 437255), (713, 394940), (805, 349804), (806, 349370), (868, 324415), (910, 309442), (961, 293020), (980, 287339), (1085, 259532), (1127, 249860), (1196, 235445), (1274, 221030), (1426, 197470), (1495, 188356), (1519, 185380), (1610, 174902), (1612, 174685), (1820, 154721), (1922, 146510), (2015, 139748), (2093, 134540), (2170, 129766), (2254, 124930), (2548, 110515), (2821, 99820), (2852, 98735), (2990, 94178), (3038, 92690), (3185, 88412), (3220, 87451), (3565, 78988), (3844, 73255), (4030, 69874), (4186, 67270), (4340, 64883), (4508, 62465), (4805, 58604), (4991, 56420), (5635, 49972), (5642, 49910), (5980, 47089), (6076, 46345), (6370, 44206), (6727, 41860), (7130, 39494), (7595, 37076), (8060, 34937), (8372, 33635), (9269, 30380), (9610, 29302), (9982, 28210), (10465, 26908), (11270, 24986), (11284, 24955), (12493, 22540), (12740, 22103), (13454, 20930), (14105, 19964), (14260, 19747), (14651, 19220), (15190, 18538)]