20189664240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{945209}}^1$

素因数の和:945314

約数の個数: 80

約数和(自身を含む): 63291261600

約数和(自身を除く): 43101597360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 3560, 4272, 5340, 7120, 10680, 21360, 945209, 1890418, 2835627, 3780836, 4726045, 5671254, 7561672, 9452090, 11342508, 14178135, 15123344, 18904180, 22685016, 28356270, 37808360, 45370032, 56712540, 75616720, 84123601, 113425080, 168247202, 226850160, 252370803, 336494404, 420618005, 504741606, 672988808, 841236010, 1009483212, 1261854015, 1345977616, 1682472020, 2018966424, 2523708030, 3364944040, 4037932848, 5047416060, 6729888080, 10094832120, 20189664240]

約数ペア:

[(1, 20189664240), (2, 10094832120), (3, 6729888080), (4, 5047416060), (5, 4037932848), (6, 3364944040), (8, 2523708030), (10, 2018966424), (12, 1682472020), (15, 1345977616), (16, 1261854015), (20, 1009483212), (24, 841236010), (30, 672988808), (40, 504741606), (48, 420618005), (60, 336494404), (80, 252370803), (89, 226850160), (120, 168247202), (178, 113425080), (240, 84123601), (267, 75616720), (356, 56712540), (445, 45370032), (534, 37808360), (712, 28356270), (890, 22685016), (1068, 18904180), (1335, 15123344), (1424, 14178135), (1780, 11342508), (2136, 9452090), (2670, 7561672), (3560, 5671254), (4272, 4726045), (5340, 3780836), (7120, 2835627), (10680, 1890418), (21360, 945209)]