39880700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 90556704

約数和(自身を除く): 50676004

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 71, 82, 100, 137, 142, 164, 205, 274, 284, 355, 410, 548, 685, 710, 820, 1025, 1370, 1420, 1775, 2050, 2740, 2911, 3425, 3550, 4100, 5617, 5822, 6850, 7100, 9727, 11234, 11644, 13700, 14555, 19454, 22468, 28085, 29110, 38908, 48635, 56170, 58220, 72775, 97270, 112340, 140425, 145550, 194540, 243175, 280850, 291100, 398807, 486350, 561700, 797614, 972700, 1595228, 1994035, 3988070, 7976140, 9970175, 19940350, 39880700]

約数ペア:

[(1, 39880700), (2, 19940350), (4, 9970175), (5, 7976140), (10, 3988070), (20, 1994035), (25, 1595228), (41, 972700), (50, 797614), (71, 561700), (82, 486350), (100, 398807), (137, 291100), (142, 280850), (164, 243175), (205, 194540), (274, 145550), (284, 140425), (355, 112340), (410, 97270), (548, 72775), (685, 58220), (710, 56170), (820, 48635), (1025, 38908), (1370, 29110), (1420, 28085), (1775, 22468), (2050, 19454), (2740, 14555), (2911, 13700), (3425, 11644), (3550, 11234), (4100, 9727), (5617, 7100), (5822, 6850)]