647164060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{8219}}^1$

素因数の和:8386

約数の個数: 48

約数和(自身を含む): 1414103040

約数和(自身を除く): 766938980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 3937, 7874, 8219, 15748, 16438, 19685, 32876, 39370, 41095, 78740, 82190, 164380, 254789, 509578, 1019156, 1043813, 1273945, 2087626, 2547890, 4175252, 5095780, 5219065, 10438130, 20876260, 32358203, 64716406, 129432812, 161791015, 323582030, 647164060]

約数ペア:

[(1, 647164060), (2, 323582030), (4, 161791015), (5, 129432812), (10, 64716406), (20, 32358203), (31, 20876260), (62, 10438130), (124, 5219065), (127, 5095780), (155, 4175252), (254, 2547890), (310, 2087626), (508, 1273945), (620, 1043813), (635, 1019156), (1270, 509578), (2540, 254789), (3937, 164380), (7874, 82190), (8219, 78740), (15748, 41095), (16438, 39370), (19685, 32876)]