20447880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2053}}^1$

素因数の和:2150

約数の個数: 64

約数和(自身を含む): 62112960

約数和(自身を除く): 41665080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2053, 2490, 3320, 4106, 4980, 6159, 8212, 9960, 10265, 12318, 16424, 20530, 24636, 30795, 41060, 49272, 61590, 82120, 123180, 170399, 246360, 340798, 511197, 681596, 851995, 1022394, 1363192, 1703990, 2044788, 2555985, 3407980, 4089576, 5111970, 6815960, 10223940, 20447880]

約数ペア:

[(1, 20447880), (2, 10223940), (3, 6815960), (4, 5111970), (5, 4089576), (6, 3407980), (8, 2555985), (10, 2044788), (12, 1703990), (15, 1363192), (20, 1022394), (24, 851995), (30, 681596), (40, 511197), (60, 340798), (83, 246360), (120, 170399), (166, 123180), (249, 82120), (332, 61590), (415, 49272), (498, 41060), (664, 30795), (830, 24636), (996, 20530), (1245, 16424), (1660, 12318), (1992, 10265), (2053, 9960), (2490, 8212), (3320, 6159), (4106, 4980)]