20512890975

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{569}}^1\times {\mathrm{20899}}^1$

素因数の和:21504

約数の個数: 48

約数和(自身を含む): 35453088000

約数和(自身を除く): 14940197025

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 569, 575, 1707, 1725, 2845, 8535, 13087, 14225, 20899, 39261, 42675, 62697, 65435, 104495, 196305, 313485, 327175, 480677, 522475, 981525, 1442031, 1567425, 2403385, 7210155, 11891531, 12016925, 35674593, 36050775, 59457655, 178372965, 273505213, 297288275, 820515639, 891864825, 1367526065, 4102578195, 6837630325, 20512890975]

約数ペア:

[(1, 20512890975), (3, 6837630325), (5, 4102578195), (15, 1367526065), (23, 891864825), (25, 820515639), (69, 297288275), (75, 273505213), (115, 178372965), (345, 59457655), (569, 36050775), (575, 35674593), (1707, 12016925), (1725, 11891531), (2845, 7210155), (8535, 2403385), (13087, 1567425), (14225, 1442031), (20899, 981525), (39261, 522475), (42675, 480677), (62697, 327175), (65435, 313485), (104495, 196305)]