8673980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 21718368

約数和(自身を除く): 13044388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 167, 196, 212, 245, 265, 334, 371, 490, 530, 668, 742, 835, 980, 1060, 1169, 1484, 1670, 1855, 2338, 2597, 3340, 3710, 4676, 5194, 5845, 7420, 8183, 8851, 10388, 11690, 12985, 16366, 17702, 23380, 25970, 32732, 35404, 40915, 44255, 51940, 61957, 81830, 88510, 123914, 163660, 177020, 247828, 309785, 433699, 619570, 867398, 1239140, 1734796, 2168495, 4336990, 8673980]

約数ペア:

[(1, 8673980), (2, 4336990), (4, 2168495), (5, 1734796), (7, 1239140), (10, 867398), (14, 619570), (20, 433699), (28, 309785), (35, 247828), (49, 177020), (53, 163660), (70, 123914), (98, 88510), (106, 81830), (140, 61957), (167, 51940), (196, 44255), (212, 40915), (245, 35404), (265, 32732), (334, 25970), (371, 23380), (490, 17702), (530, 16366), (668, 12985), (742, 11690), (835, 10388), (980, 8851), (1060, 8183), (1169, 7420), (1484, 5845), (1670, 5194), (1855, 4676), (2338, 3710), (2597, 3340)]