1624998520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{665983}}^1$

素因数の和:666055

約数の個数: 32

約数和(自身を含む): 3716190720

約数和(自身を除く): 2091192200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 665983, 1331966, 2663932, 3329915, 5327864, 6659830, 13319660, 26639320, 40624963, 81249926, 162499852, 203124815, 324999704, 406249630, 812499260, 1624998520]

約数ペア:

[(1, 1624998520), (2, 812499260), (4, 406249630), (5, 324999704), (8, 203124815), (10, 162499852), (20, 81249926), (40, 40624963), (61, 26639320), (122, 13319660), (244, 6659830), (305, 5327864), (488, 3329915), (610, 2663932), (1220, 1331966), (2440, 665983)]