128521020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{126001}}^1$

素因数の和:126030

約数の個数: 48

約数和(自身を含む): 381030048

約数和(自身を除く): 252509028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 126001, 252002, 378003, 504004, 630005, 756006, 1260010, 1512012, 1890015, 2142017, 2520020, 3780030, 4284034, 6426051, 7560060, 8568068, 10710085, 12852102, 21420170, 25704204, 32130255, 42840340, 64260510, 128521020]

約数ペア:

[(1, 128521020), (2, 64260510), (3, 42840340), (4, 32130255), (5, 25704204), (6, 21420170), (10, 12852102), (12, 10710085), (15, 8568068), (17, 7560060), (20, 6426051), (30, 4284034), (34, 3780030), (51, 2520020), (60, 2142017), (68, 1890015), (85, 1512012), (102, 1260010), (170, 756006), (204, 630005), (255, 504004), (340, 378003), (510, 252002), (1020, 126001)]