20538005325

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^2$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 35334175968

約数和(自身を除く): 14796170643

約数列:

[1, 3, 5, 15, 25, 37, 75, 107, 111, 185, 263, 321, 535, 555, 789, 925, 1315, 1605, 2675, 2775, 3945, 3959, 6575, 8025, 9731, 11877, 19725, 19795, 28141, 29193, 48655, 59385, 69169, 84423, 98975, 140705, 145965, 207507, 243275, 296925, 345845, 422115, 703525, 729825, 1037535, 1041217, 1729225, 2110575, 2559253, 3123651, 5187675, 5206085, 7401083, 7677759, 12796265, 15618255, 22203249, 26030425, 37005415, 38388795, 63981325, 78091275, 111016245, 185027075, 191943975, 273840071, 555081225, 821520213, 1369200355, 4107601065, 6846001775, 20538005325]

約数ペア:

[(1, 20538005325), (3, 6846001775), (5, 4107601065), (15, 1369200355), (25, 821520213), (37, 555081225), (75, 273840071), (107, 191943975), (111, 185027075), (185, 111016245), (263, 78091275), (321, 63981325), (535, 38388795), (555, 37005415), (789, 26030425), (925, 22203249), (1315, 15618255), (1605, 12796265), (2675, 7677759), (2775, 7401083), (3945, 5206085), (3959, 5187675), (6575, 3123651), (8025, 2559253), (9731, 2110575), (11877, 1729225), (19725, 1041217), (19795, 1037535), (28141, 729825), (29193, 703525), (48655, 422115), (59385, 345845), (69169, 296925), (84423, 243275), (98975, 207507), (140705, 145965)]