15880720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11677}}^1$

素因数の和:11707

約数の個数: 40

約数和(自身を含む): 39097944

約数和(自身を除く): 23217224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 11677, 23354, 46708, 58385, 93416, 116770, 186832, 198509, 233540, 397018, 467080, 794036, 934160, 992545, 1588072, 1985090, 3176144, 3970180, 7940360, 15880720]

約数ペア:

[(1, 15880720), (2, 7940360), (4, 3970180), (5, 3176144), (8, 1985090), (10, 1588072), (16, 992545), (17, 934160), (20, 794036), (34, 467080), (40, 397018), (68, 233540), (80, 198509), (85, 186832), (136, 116770), (170, 93416), (272, 58385), (340, 46708), (680, 23354), (1360, 11677)]