19889550

素因数分解:

$2^1\times 3^5\times 5^2\times {\mathrm{1637}}^1$

素因数の和:1664

約数の個数: 72

約数和(自身を含む): 55449576

約数和(自身を除く): 35560026

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 81, 90, 135, 150, 162, 225, 243, 270, 405, 450, 486, 675, 810, 1215, 1350, 1637, 2025, 2430, 3274, 4050, 4911, 6075, 8185, 9822, 12150, 14733, 16370, 24555, 29466, 40925, 44199, 49110, 73665, 81850, 88398, 122775, 132597, 147330, 220995, 245550, 265194, 368325, 397791, 441990, 662985, 736650, 795582, 1104975, 1325970, 1988955, 2209950, 3314925, 3977910, 6629850, 9944775, 19889550]

約数ペア:

[(1, 19889550), (2, 9944775), (3, 6629850), (5, 3977910), (6, 3314925), (9, 2209950), (10, 1988955), (15, 1325970), (18, 1104975), (25, 795582), (27, 736650), (30, 662985), (45, 441990), (50, 397791), (54, 368325), (75, 265194), (81, 245550), (90, 220995), (135, 147330), (150, 132597), (162, 122775), (225, 88398), (243, 81850), (270, 73665), (405, 49110), (450, 44199), (486, 40925), (675, 29466), (810, 24555), (1215, 16370), (1350, 14733), (1637, 12150), (2025, 9822), (2430, 8185), (3274, 6075), (4050, 4911)]