72747640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{259813}}^1$

素因数の和:259831

約数の個数: 32

約数和(自身を含む): 187066080

約数和(自身を除く): 114318440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 259813, 519626, 1039252, 1299065, 1818691, 2078504, 2598130, 3637382, 5196260, 7274764, 9093455, 10392520, 14549528, 18186910, 36373820, 72747640]

約数ペア:

[(1, 72747640), (2, 36373820), (4, 18186910), (5, 14549528), (7, 10392520), (8, 9093455), (10, 7274764), (14, 5196260), (20, 3637382), (28, 2598130), (35, 2078504), (40, 1818691), (56, 1299065), (70, 1039252), (140, 519626), (280, 259813)]