1640456220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2103149}}^1$

素因数の和:2103174

約数の個数: 48

約数和(自身を含む): 4946608800

約数和(自身を除く): 3306152580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2103149, 4206298, 6309447, 8412596, 10515745, 12618894, 21031490, 25237788, 27340937, 31547235, 42062980, 54681874, 63094470, 82022811, 109363748, 126188940, 136704685, 164045622, 273409370, 328091244, 410114055, 546818740, 820228110, 1640456220]

約数ペア:

[(1, 1640456220), (2, 820228110), (3, 546818740), (4, 410114055), (5, 328091244), (6, 273409370), (10, 164045622), (12, 136704685), (13, 126188940), (15, 109363748), (20, 82022811), (26, 63094470), (30, 54681874), (39, 42062980), (52, 31547235), (60, 27340937), (65, 25237788), (78, 21031490), (130, 12618894), (156, 10515745), (195, 8412596), (260, 6309447), (390, 4206298), (780, 2103149)]