20173439920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:651

約数の個数: 160

約数和(自身を含む): 48915869184

約数和(自身を除く): 28742429264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 103, 164, 205, 206, 211, 283, 328, 410, 412, 422, 515, 566, 656, 820, 824, 844, 1030, 1055, 1132, 1415, 1640, 1648, 1688, 2060, 2110, 2264, 2830, 3280, 3376, 4120, 4220, 4223, 4528, 5660, 8240, 8440, 8446, 8651, 11320, 11603, 16880, 16892, 17302, 21115, 21733, 22640, 23206, 29149, 33784, 34604, 42230, 43255, 43466, 46412, 58015, 58298, 59713, 67568, 69208, 84460, 86510, 86932, 92824, 108665, 116030, 116596, 119426, 138416, 145745, 168920, 173020, 173864, 185648, 217330, 232060, 233192, 238852, 291490, 298565, 337840, 346040, 347728, 434660, 464120, 466384, 477704, 582980, 597130, 692080, 869320, 891053, 928240, 955408, 1165960, 1194260, 1195109, 1738640, 1782106, 2331920, 2388520, 2390218, 2448233, 3564212, 4455265, 4777040, 4780436, 4896466, 5975545, 6150439, 7128424, 8910530, 9560872, 9792932, 11951090, 12241165, 12300878, 14256848, 17821060, 19121744, 19585864, 23902180, 24482330, 24601756, 30752195, 35642120, 39171728, 47804360, 48964660, 49203512, 61504390, 71284240, 95608720, 97929320, 98407024, 123008780, 195858640, 246017560, 252167999, 492035120, 504335998, 1008671996, 1260839995, 2017343992, 2521679990, 4034687984, 5043359980, 10086719960, 20173439920]

約数ペア:

[(1, 20173439920), (2, 10086719960), (4, 5043359980), (5, 4034687984), (8, 2521679990), (10, 2017343992), (16, 1260839995), (20, 1008671996), (40, 504335998), (41, 492035120), (80, 252167999), (82, 246017560), (103, 195858640), (164, 123008780), (205, 98407024), (206, 97929320), (211, 95608720), (283, 71284240), (328, 61504390), (410, 49203512), (412, 48964660), (422, 47804360), (515, 39171728), (566, 35642120), (656, 30752195), (820, 24601756), (824, 24482330), (844, 23902180), (1030, 19585864), (1055, 19121744), (1132, 17821060), (1415, 14256848), (1640, 12300878), (1648, 12241165), (1688, 11951090), (2060, 9792932), (2110, 9560872), (2264, 8910530), (2830, 7128424), (3280, 6150439), (3376, 5975545), (4120, 4896466), (4220, 4780436), (4223, 4777040), (4528, 4455265), (5660, 3564212), (8240, 2448233), (8440, 2390218), (8446, 2388520), (8651, 2331920), (11320, 1782106), (11603, 1738640), (16880, 1195109), (16892, 1194260), (17302, 1165960), (21115, 955408), (21733, 928240), (22640, 891053), (23206, 869320), (29149, 692080), (33784, 597130), (34604, 582980), (42230, 477704), (43255, 466384), (43466, 464120), (46412, 434660), (58015, 347728), (58298, 346040), (59713, 337840), (67568, 298565), (69208, 291490), (84460, 238852), (86510, 233192), (86932, 232060), (92824, 217330), (108665, 185648), (116030, 173864), (116596, 173020), (119426, 168920), (138416, 145745)]