157515280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{487}}^1$

素因数の和:824

約数の個数: 80

約数和(自身を含む): 396474624

約数和(自身を除く): 238959344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 311, 487, 520, 622, 974, 1040, 1244, 1555, 1948, 2435, 2488, 3110, 3896, 4043, 4870, 4976, 6220, 6331, 7792, 8086, 9740, 12440, 12662, 16172, 19480, 20215, 24880, 25324, 31655, 32344, 38960, 40430, 50648, 63310, 64688, 80860, 101296, 126620, 151457, 161720, 253240, 302914, 323440, 506480, 605828, 757285, 1211656, 1514570, 1968941, 2423312, 3029140, 3937882, 6058280, 7875764, 9844705, 12116560, 15751528, 19689410, 31503056, 39378820, 78757640, 157515280]

約数ペア:

[(1, 157515280), (2, 78757640), (4, 39378820), (5, 31503056), (8, 19689410), (10, 15751528), (13, 12116560), (16, 9844705), (20, 7875764), (26, 6058280), (40, 3937882), (52, 3029140), (65, 2423312), (80, 1968941), (104, 1514570), (130, 1211656), (208, 757285), (260, 605828), (311, 506480), (487, 323440), (520, 302914), (622, 253240), (974, 161720), (1040, 151457), (1244, 126620), (1555, 101296), (1948, 80860), (2435, 64688), (2488, 63310), (3110, 50648), (3896, 40430), (4043, 38960), (4870, 32344), (4976, 31655), (6220, 25324), (6331, 24880), (7792, 20215), (8086, 19480), (9740, 16172), (12440, 12662)]