81812010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1747}}^1$

素因数の和:1987

約数の個数: 64

約数和(自身を含む): 225533952

約数和(自身を除く): 143721942

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 446, 669, 1115, 1338, 1561, 1747, 2230, 3122, 3345, 3494, 4683, 5241, 6690, 7805, 8735, 9366, 10482, 12229, 15610, 17470, 23415, 24458, 26205, 36687, 46830, 52410, 61145, 73374, 122290, 183435, 366870, 389581, 779162, 1168743, 1947905, 2337486, 2727067, 3895810, 5454134, 5843715, 8181201, 11687430, 13635335, 16362402, 27270670, 40906005, 81812010]

約数ペア:

[(1, 81812010), (2, 40906005), (3, 27270670), (5, 16362402), (6, 13635335), (7, 11687430), (10, 8181201), (14, 5843715), (15, 5454134), (21, 3895810), (30, 2727067), (35, 2337486), (42, 1947905), (70, 1168743), (105, 779162), (210, 389581), (223, 366870), (446, 183435), (669, 122290), (1115, 73374), (1338, 61145), (1561, 52410), (1747, 46830), (2230, 36687), (3122, 26205), (3345, 24458), (3494, 23415), (4683, 17470), (5241, 15610), (6690, 12229), (7805, 10482), (8735, 9366)]