9988520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 24500880

約数和(自身を除く): 14512360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 397, 629, 680, 740, 794, 1258, 1480, 1588, 1985, 2516, 3145, 3176, 3970, 5032, 6290, 6749, 7940, 12580, 13498, 14689, 15880, 25160, 26996, 29378, 33745, 53992, 58756, 67490, 73445, 117512, 134980, 146890, 249713, 269960, 293780, 499426, 587560, 998852, 1248565, 1997704, 2497130, 4994260, 9988520]

約数ペア:

[(1, 9988520), (2, 4994260), (4, 2497130), (5, 1997704), (8, 1248565), (10, 998852), (17, 587560), (20, 499426), (34, 293780), (37, 269960), (40, 249713), (68, 146890), (74, 134980), (85, 117512), (136, 73445), (148, 67490), (170, 58756), (185, 53992), (296, 33745), (340, 29378), (370, 26996), (397, 25160), (629, 15880), (680, 14689), (740, 13498), (794, 12580), (1258, 7940), (1480, 6749), (1588, 6290), (1985, 5032), (2516, 3970), (3145, 3176)]