90721960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17053}}^1$

素因数の和:17090

約数の個数: 64

約数和(自身を含む): 245577600

約数和(自身を除く): 154855640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 17053, 34106, 68212, 85265, 119371, 136424, 170530, 238742, 324007, 341060, 477484, 596855, 648014, 682120, 954968, 1193710, 1296028, 1620035, 2268049, 2387420, 2592056, 3240070, 4536098, 4774840, 6480140, 9072196, 11340245, 12960280, 18144392, 22680490, 45360980, 90721960]

約数ペア:

[(1, 90721960), (2, 45360980), (4, 22680490), (5, 18144392), (7, 12960280), (8, 11340245), (10, 9072196), (14, 6480140), (19, 4774840), (20, 4536098), (28, 3240070), (35, 2592056), (38, 2387420), (40, 2268049), (56, 1620035), (70, 1296028), (76, 1193710), (95, 954968), (133, 682120), (140, 648014), (152, 596855), (190, 477484), (266, 341060), (280, 324007), (380, 238742), (532, 170530), (665, 136424), (760, 119371), (1064, 85265), (1330, 68212), (2660, 34106), (5320, 17053)]