20952250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 45152640

約数和(自身を除く): 24200390

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 125, 190, 209, 250, 275, 401, 418, 475, 550, 802, 950, 1045, 1375, 2005, 2090, 2375, 2750, 4010, 4411, 4750, 5225, 7619, 8822, 10025, 10450, 15238, 20050, 22055, 26125, 38095, 44110, 50125, 52250, 76190, 83809, 100250, 110275, 167618, 190475, 220550, 380950, 419045, 551375, 838090, 952375, 1102750, 1904750, 2095225, 4190450, 10476125, 20952250]

約数ペア:

[(1, 20952250), (2, 10476125), (5, 4190450), (10, 2095225), (11, 1904750), (19, 1102750), (22, 952375), (25, 838090), (38, 551375), (50, 419045), (55, 380950), (95, 220550), (110, 190475), (125, 167618), (190, 110275), (209, 100250), (250, 83809), (275, 76190), (401, 52250), (418, 50125), (475, 44110), (550, 38095), (802, 26125), (950, 22055), (1045, 20050), (1375, 15238), (2005, 10450), (2090, 10025), (2375, 8822), (2750, 7619), (4010, 5225), (4411, 4750)]