20158877900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{66509}}^1$

素因数の和:66963

約数の個数: 72

約数和(自身を含む): 50110230240

約数和(自身を除く): 29951352340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 433, 700, 866, 1732, 2165, 3031, 4330, 6062, 8660, 10825, 12124, 15155, 21650, 30310, 43300, 60620, 66509, 75775, 133018, 151550, 266036, 303100, 332545, 465563, 665090, 931126, 1330180, 1662725, 1862252, 2327815, 3325450, 4655630, 6650900, 9311260, 11639075, 23278150, 28798397, 46556300, 57596794, 115193588, 143991985, 201588779, 287983970, 403177558, 575967940, 719959925, 806355116, 1007943895, 1439919850, 2015887790, 2879839700, 4031775580, 5039719475, 10079438950, 20158877900]

約数ペア:

[(1, 20158877900), (2, 10079438950), (4, 5039719475), (5, 4031775580), (7, 2879839700), (10, 2015887790), (14, 1439919850), (20, 1007943895), (25, 806355116), (28, 719959925), (35, 575967940), (50, 403177558), (70, 287983970), (100, 201588779), (140, 143991985), (175, 115193588), (350, 57596794), (433, 46556300), (700, 28798397), (866, 23278150), (1732, 11639075), (2165, 9311260), (3031, 6650900), (4330, 4655630), (6062, 3325450), (8660, 2327815), (10825, 1862252), (12124, 1662725), (15155, 1330180), (21650, 931126), (30310, 665090), (43300, 465563), (60620, 332545), (66509, 303100), (75775, 266036), (133018, 151550)]