71495920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 173703168

約数和(自身を除く): 102207248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 227, 248, 254, 310, 454, 496, 508, 620, 635, 908, 1016, 1135, 1240, 1270, 1816, 2032, 2270, 2480, 2540, 3632, 3937, 4540, 5080, 7037, 7874, 9080, 10160, 14074, 15748, 18160, 19685, 28148, 28829, 31496, 35185, 39370, 56296, 57658, 62992, 70370, 78740, 112592, 115316, 140740, 144145, 157480, 230632, 281480, 288290, 314960, 461264, 562960, 576580, 893699, 1153160, 1787398, 2306320, 3574796, 4468495, 7149592, 8936990, 14299184, 17873980, 35747960, 71495920]

約数ペア:

[(1, 71495920), (2, 35747960), (4, 17873980), (5, 14299184), (8, 8936990), (10, 7149592), (16, 4468495), (20, 3574796), (31, 2306320), (40, 1787398), (62, 1153160), (80, 893699), (124, 576580), (127, 562960), (155, 461264), (227, 314960), (248, 288290), (254, 281480), (310, 230632), (454, 157480), (496, 144145), (508, 140740), (620, 115316), (635, 112592), (908, 78740), (1016, 70370), (1135, 62992), (1240, 57658), (1270, 56296), (1816, 39370), (2032, 35185), (2270, 31496), (2480, 28829), (2540, 28148), (3632, 19685), (3937, 18160), (4540, 15748), (5080, 14074), (7037, 10160), (7874, 9080)]