161384140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1987}}^1$

素因数の和:2158

約数の個数: 48

約数和(自身を含む): 352687104

約数和(自身を除く): 191302964

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 524, 620, 655, 1310, 1987, 2620, 3974, 4061, 7948, 8122, 9935, 16244, 19870, 20305, 39740, 40610, 61597, 81220, 123194, 246388, 260297, 307985, 520594, 615970, 1041188, 1231940, 1301485, 2602970, 5205940, 8069207, 16138414, 32276828, 40346035, 80692070, 161384140]

約数ペア:

[(1, 161384140), (2, 80692070), (4, 40346035), (5, 32276828), (10, 16138414), (20, 8069207), (31, 5205940), (62, 2602970), (124, 1301485), (131, 1231940), (155, 1041188), (262, 615970), (310, 520594), (524, 307985), (620, 260297), (655, 246388), (1310, 123194), (1987, 81220), (2620, 61597), (3974, 40610), (4061, 39740), (7948, 20305), (8122, 19870), (9935, 16244)]