388625620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{11491}}^1$

素因数の和:11608

約数の個数: 48

約数和(自身を含む): 868795200

約数和(自身を除く): 480169580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6764, 8455, 11491, 16910, 22982, 33820, 45964, 57455, 114910, 218329, 229820, 436658, 873316, 1022699, 1091645, 2045398, 2183290, 4090796, 4366580, 5113495, 10226990, 19431281, 20453980, 38862562, 77725124, 97156405, 194312810, 388625620]

約数ペア:

[(1, 388625620), (2, 194312810), (4, 97156405), (5, 77725124), (10, 38862562), (19, 20453980), (20, 19431281), (38, 10226990), (76, 5113495), (89, 4366580), (95, 4090796), (178, 2183290), (190, 2045398), (356, 1091645), (380, 1022699), (445, 873316), (890, 436658), (1691, 229820), (1780, 218329), (3382, 114910), (6764, 57455), (8455, 45964), (11491, 33820), (16910, 22982)]