20104687500

素因数分解:

$2^2\times 3^1\times 5^8\times {\mathrm{4289}}^1$

素因数の和:4336

約数の個数: 108

約数和(自身を含む): 58652313720

約数和(自身を除く): 38547626220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 625, 750, 1250, 1500, 1875, 2500, 3125, 3750, 4289, 6250, 7500, 8578, 9375, 12500, 12867, 15625, 17156, 18750, 21445, 25734, 31250, 37500, 42890, 46875, 51468, 62500, 64335, 78125, 85780, 93750, 107225, 128670, 156250, 187500, 214450, 234375, 257340, 312500, 321675, 390625, 428900, 468750, 536125, 643350, 781250, 937500, 1072250, 1171875, 1286700, 1562500, 1608375, 2144500, 2343750, 2680625, 3216750, 4687500, 5361250, 6433500, 8041875, 10722500, 13403125, 16083750, 26806250, 32167500, 40209375, 53612500, 67015625, 80418750, 134031250, 160837500, 201046875, 268062500, 335078125, 402093750, 670156250, 804187500, 1005234375, 1340312500, 1675390625, 2010468750, 3350781250, 4020937500, 5026171875, 6701562500, 10052343750, 20104687500]

約数ペア:

[(1, 20104687500), (2, 10052343750), (3, 6701562500), (4, 5026171875), (5, 4020937500), (6, 3350781250), (10, 2010468750), (12, 1675390625), (15, 1340312500), (20, 1005234375), (25, 804187500), (30, 670156250), (50, 402093750), (60, 335078125), (75, 268062500), (100, 201046875), (125, 160837500), (150, 134031250), (250, 80418750), (300, 67015625), (375, 53612500), (500, 40209375), (625, 32167500), (750, 26806250), (1250, 16083750), (1500, 13403125), (1875, 10722500), (2500, 8041875), (3125, 6433500), (3750, 5361250), (4289, 4687500), (6250, 3216750), (7500, 2680625), (8578, 2343750), (9375, 2144500), (12500, 1608375), (12867, 1562500), (15625, 1286700), (17156, 1171875), (18750, 1072250), (21445, 937500), (25734, 781250), (31250, 643350), (37500, 536125), (42890, 468750), (46875, 428900), (51468, 390625), (62500, 321675), (64335, 312500), (78125, 257340), (85780, 234375), (93750, 214450), (107225, 187500), (128670, 156250)]