1640753820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{1012811}}^1$

素因数の和:1012832

約数の個数: 60

約数和(自身を含む): 5147110584

約数和(自身を除く): 3506356764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 1012811, 2025622, 3038433, 4051244, 5064055, 6076866, 9115299, 10128110, 12153732, 15192165, 18230598, 20256220, 27345897, 30384330, 36461196, 45576495, 54691794, 60768660, 82037691, 91152990, 109383588, 136729485, 164075382, 182305980, 273458970, 328150764, 410188455, 546917940, 820376910, 1640753820]

約数ペア:

[(1, 1640753820), (2, 820376910), (3, 546917940), (4, 410188455), (5, 328150764), (6, 273458970), (9, 182305980), (10, 164075382), (12, 136729485), (15, 109383588), (18, 91152990), (20, 82037691), (27, 60768660), (30, 54691794), (36, 45576495), (45, 36461196), (54, 30384330), (60, 27345897), (81, 20256220), (90, 18230598), (108, 15192165), (135, 12153732), (162, 10128110), (180, 9115299), (270, 6076866), (324, 5064055), (405, 4051244), (540, 3038433), (810, 2025622), (1620, 1012811)]