81291368

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{4099}}^1$

素因数の和:4209

約数の個数: 32

約数和(自身を含む): 158916000

約数和(自身を除く): 77624632

約数列:

[1, 2, 4, 8, 37, 67, 74, 134, 148, 268, 296, 536, 2479, 4099, 4958, 8198, 9916, 16396, 19832, 32792, 151663, 274633, 303326, 549266, 606652, 1098532, 1213304, 2197064, 10161421, 20322842, 40645684, 81291368]

約数ペア:

[(1, 81291368), (2, 40645684), (4, 20322842), (8, 10161421), (37, 2197064), (67, 1213304), (74, 1098532), (134, 606652), (148, 549266), (268, 303326), (296, 274633), (536, 151663), (2479, 32792), (4099, 19832), (4958, 16396), (8198, 9916)]