287477680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{513353}}^1$

素因数の和:513373

約数の個数: 40

約数和(自身を含む): 763870752

約数和(自身を除く): 476393072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 513353, 1026706, 2053412, 2566765, 3593471, 4106824, 5133530, 7186942, 8213648, 10267060, 14373884, 17967355, 20534120, 28747768, 35934710, 41068240, 57495536, 71869420, 143738840, 287477680]

約数ペア:

[(1, 287477680), (2, 143738840), (4, 71869420), (5, 57495536), (7, 41068240), (8, 35934710), (10, 28747768), (14, 20534120), (16, 17967355), (20, 14373884), (28, 10267060), (35, 8213648), (40, 7186942), (56, 5133530), (70, 4106824), (80, 3593471), (112, 2566765), (140, 2053412), (280, 1026706), (560, 513353)]