7640480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 19479852

約数和(自身を除く): 11839372

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 53, 68, 80, 85, 106, 136, 160, 170, 212, 265, 272, 340, 424, 530, 544, 680, 848, 901, 1060, 1360, 1696, 1802, 2120, 2720, 2809, 3604, 4240, 4505, 5618, 7208, 8480, 9010, 11236, 14045, 14416, 18020, 22472, 28090, 28832, 36040, 44944, 47753, 56180, 72080, 89888, 95506, 112360, 144160, 191012, 224720, 238765, 382024, 449440, 477530, 764048, 955060, 1528096, 1910120, 3820240, 7640480]

約数ペア:

[(1, 7640480), (2, 3820240), (4, 1910120), (5, 1528096), (8, 955060), (10, 764048), (16, 477530), (17, 449440), (20, 382024), (32, 238765), (34, 224720), (40, 191012), (53, 144160), (68, 112360), (80, 95506), (85, 89888), (106, 72080), (136, 56180), (160, 47753), (170, 44944), (212, 36040), (265, 28832), (272, 28090), (340, 22472), (424, 18020), (530, 14416), (544, 14045), (680, 11236), (848, 9010), (901, 8480), (1060, 7208), (1360, 5618), (1696, 4505), (1802, 4240), (2120, 3604), (2720, 2809)]