7260020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 16365888

約数和(自身を除く): 9105868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 131, 163, 170, 262, 326, 340, 524, 652, 655, 815, 1310, 1630, 2227, 2620, 2771, 3260, 4454, 5542, 8908, 11084, 11135, 13855, 21353, 22270, 27710, 42706, 44540, 55420, 85412, 106765, 213530, 363001, 427060, 726002, 1452004, 1815005, 3630010, 7260020]

約数ペア:

[(1, 7260020), (2, 3630010), (4, 1815005), (5, 1452004), (10, 726002), (17, 427060), (20, 363001), (34, 213530), (68, 106765), (85, 85412), (131, 55420), (163, 44540), (170, 42706), (262, 27710), (326, 22270), (340, 21353), (524, 13855), (652, 11135), (655, 11084), (815, 8908), (1310, 5542), (1630, 4454), (2227, 3260), (2620, 2771)]