81551330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^3$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 179919360

約数和(自身を除く): 98368030

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 37, 46, 70, 74, 115, 161, 185, 230, 259, 322, 370, 518, 805, 851, 1295, 1369, 1610, 1702, 2590, 2738, 4255, 5957, 6845, 8510, 9583, 11914, 13690, 19166, 29785, 31487, 47915, 50653, 59570, 62974, 95830, 101306, 157435, 220409, 253265, 314870, 354571, 440818, 506530, 709142, 1102045, 1165019, 1772855, 2204090, 2330038, 3545710, 5825095, 8155133, 11650190, 16310266, 40775665, 81551330]

約数ペア:

[(1, 81551330), (2, 40775665), (5, 16310266), (7, 11650190), (10, 8155133), (14, 5825095), (23, 3545710), (35, 2330038), (37, 2204090), (46, 1772855), (70, 1165019), (74, 1102045), (115, 709142), (161, 506530), (185, 440818), (230, 354571), (259, 314870), (322, 253265), (370, 220409), (518, 157435), (805, 101306), (851, 95830), (1295, 62974), (1369, 59570), (1610, 50653), (1702, 47915), (2590, 31487), (2738, 29785), (4255, 19166), (5957, 13690), (6845, 11914), (8510, 9583)]