20079950540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{3769}}^1$

素因数の和:4483

約数の個数: 96

約数和(自身を含む): 46959843840

約数和(自身を除く): 26879893300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 661, 806, 1322, 1612, 2015, 2644, 3305, 3769, 4030, 6610, 7538, 8060, 8593, 13220, 15076, 17186, 18845, 20491, 34372, 37690, 40982, 42965, 48997, 75380, 81964, 85930, 97994, 102455, 116839, 171860, 195988, 204910, 233678, 244985, 266383, 409820, 467356, 489970, 532766, 584195, 979940, 1065532, 1168390, 1331915, 1518907, 2336780, 2491309, 2663830, 3037814, 4982618, 5327660, 6075628, 7594535, 9965236, 12456545, 15189070, 24913090, 30378140, 32387017, 49826180, 64774034, 77230579, 129548068, 154461158, 161935085, 308922316, 323870170, 386152895, 647740340, 772305790, 1003997527, 1544611580, 2007995054, 4015990108, 5019987635, 10039975270, 20079950540]

約数ペア:

[(1, 20079950540), (2, 10039975270), (4, 5019987635), (5, 4015990108), (10, 2007995054), (13, 1544611580), (20, 1003997527), (26, 772305790), (31, 647740340), (52, 386152895), (62, 323870170), (65, 308922316), (124, 161935085), (130, 154461158), (155, 129548068), (260, 77230579), (310, 64774034), (403, 49826180), (620, 32387017), (661, 30378140), (806, 24913090), (1322, 15189070), (1612, 12456545), (2015, 9965236), (2644, 7594535), (3305, 6075628), (3769, 5327660), (4030, 4982618), (6610, 3037814), (7538, 2663830), (8060, 2491309), (8593, 2336780), (13220, 1518907), (15076, 1331915), (17186, 1168390), (18845, 1065532), (20491, 979940), (34372, 584195), (37690, 532766), (40982, 489970), (42965, 467356), (48997, 409820), (75380, 266383), (81964, 244985), (85930, 233678), (97994, 204910), (102455, 195988), (116839, 171860)]