20160450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:720

約数の個数: 72

約数和(自身を含む): 55014336

約数和(自身を除く): 34853886

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 631, 639, 710, 1065, 1262, 1278, 1775, 1893, 2130, 3155, 3195, 3550, 3786, 5325, 5679, 6310, 6390, 9465, 10650, 11358, 15775, 15975, 18930, 28395, 31550, 31950, 44801, 47325, 56790, 89602, 94650, 134403, 141975, 224005, 268806, 283950, 403209, 448010, 672015, 806418, 1120025, 1344030, 2016045, 2240050, 3360075, 4032090, 6720150, 10080225, 20160450]

約数ペア:

[(1, 20160450), (2, 10080225), (3, 6720150), (5, 4032090), (6, 3360075), (9, 2240050), (10, 2016045), (15, 1344030), (18, 1120025), (25, 806418), (30, 672015), (45, 448010), (50, 403209), (71, 283950), (75, 268806), (90, 224005), (142, 141975), (150, 134403), (213, 94650), (225, 89602), (355, 56790), (426, 47325), (450, 44801), (631, 31950), (639, 31550), (710, 28395), (1065, 18930), (1262, 15975), (1278, 15775), (1775, 11358), (1893, 10650), (2130, 9465), (3155, 6390), (3195, 6310), (3550, 5679), (3786, 5325)]