20218887910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{4093}}^1$

素因数の和:4242

約数の個数: 96

約数和(自身を含む): 40996333440

約数和(自身を除く): 20777445530

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 79, 130, 158, 169, 185, 338, 370, 395, 481, 790, 845, 962, 1027, 1690, 2054, 2405, 2923, 4093, 4810, 5135, 5846, 6253, 8186, 10270, 12506, 13351, 14615, 20465, 26702, 29230, 31265, 37999, 40930, 53209, 62530, 66755, 75998, 106418, 133510, 151441, 189995, 266045, 302882, 323347, 379990, 493987, 532090, 646694, 691717, 757205, 987974, 1383434, 1514410, 1616735, 1968733, 2469935, 3233470, 3458585, 3937466, 4203511, 4939870, 6917170, 8407022, 9843665, 11963839, 19687330, 21017555, 23927678, 25593529, 42035110, 51187058, 54645643, 59819195, 109291286, 119638390, 127967645, 155529907, 255935290, 273228215, 311059814, 546456430, 777649535, 1555299070, 2021888791, 4043777582, 10109443955, 20218887910]

約数ペア:

[(1, 20218887910), (2, 10109443955), (5, 4043777582), (10, 2021888791), (13, 1555299070), (26, 777649535), (37, 546456430), (65, 311059814), (74, 273228215), (79, 255935290), (130, 155529907), (158, 127967645), (169, 119638390), (185, 109291286), (338, 59819195), (370, 54645643), (395, 51187058), (481, 42035110), (790, 25593529), (845, 23927678), (962, 21017555), (1027, 19687330), (1690, 11963839), (2054, 9843665), (2405, 8407022), (2923, 6917170), (4093, 4939870), (4810, 4203511), (5135, 3937466), (5846, 3458585), (6253, 3233470), (8186, 2469935), (10270, 1968733), (12506, 1616735), (13351, 1514410), (14615, 1383434), (20465, 987974), (26702, 757205), (29230, 691717), (31265, 646694), (37999, 532090), (40930, 493987), (53209, 379990), (62530, 323347), (66755, 302882), (75998, 266045), (106418, 189995), (133510, 151441)]