161727580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7753}}^1$

素因数の和:7918

約数の個数: 48

約数和(自身を含む): 390801600

約数和(自身を除く): 229074020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 7753, 10430, 15506, 20860, 31012, 38765, 54271, 77530, 108542, 155060, 217084, 271355, 542710, 1085420, 1155197, 2310394, 4620788, 5775985, 8086379, 11551970, 16172758, 23103940, 32345516, 40431895, 80863790, 161727580]

約数ペア:

[(1, 161727580), (2, 80863790), (4, 40431895), (5, 32345516), (7, 23103940), (10, 16172758), (14, 11551970), (20, 8086379), (28, 5775985), (35, 4620788), (70, 2310394), (140, 1155197), (149, 1085420), (298, 542710), (596, 271355), (745, 217084), (1043, 155060), (1490, 108542), (2086, 77530), (2980, 54271), (4172, 38765), (5215, 31012), (7753, 20860), (10430, 15506)]