20524750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 42120000

約数和(自身を除く): 21595250

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 125, 145, 149, 190, 250, 290, 298, 475, 551, 725, 745, 950, 1102, 1450, 1490, 2375, 2755, 2831, 3625, 3725, 4321, 4750, 5510, 5662, 7250, 7450, 8642, 13775, 14155, 18625, 21605, 27550, 28310, 37250, 43210, 68875, 70775, 82099, 108025, 137750, 141550, 164198, 216050, 353875, 410495, 540125, 707750, 820990, 1080250, 2052475, 4104950, 10262375, 20524750]

約数ペア:

[(1, 20524750), (2, 10262375), (5, 4104950), (10, 2052475), (19, 1080250), (25, 820990), (29, 707750), (38, 540125), (50, 410495), (58, 353875), (95, 216050), (125, 164198), (145, 141550), (149, 137750), (190, 108025), (250, 82099), (290, 70775), (298, 68875), (475, 43210), (551, 37250), (725, 28310), (745, 27550), (950, 21605), (1102, 18625), (1450, 14155), (1490, 13775), (2375, 8642), (2755, 7450), (2831, 7250), (3625, 5662), (3725, 5510), (4321, 4750)]