220513540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 521579520

約数和(自身を除く): 301065980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 109, 124, 130, 155, 218, 251, 260, 310, 403, 436, 502, 545, 620, 806, 1004, 1090, 1255, 1417, 1612, 2015, 2180, 2510, 2834, 3263, 3379, 4030, 5020, 5668, 6526, 6758, 7085, 7781, 8060, 13052, 13516, 14170, 15562, 16315, 16895, 27359, 28340, 31124, 32630, 33790, 38905, 43927, 54718, 65260, 67580, 77810, 87854, 101153, 109436, 136795, 155620, 175708, 202306, 219635, 273590, 355667, 404612, 439270, 505765, 547180, 711334, 848129, 878540, 1011530, 1422668, 1696258, 1778335, 2023060, 3392516, 3556670, 4240645, 7113340, 8481290, 11025677, 16962580, 22051354, 44102708, 55128385, 110256770, 220513540]

約数ペア:

[(1, 220513540), (2, 110256770), (4, 55128385), (5, 44102708), (10, 22051354), (13, 16962580), (20, 11025677), (26, 8481290), (31, 7113340), (52, 4240645), (62, 3556670), (65, 3392516), (109, 2023060), (124, 1778335), (130, 1696258), (155, 1422668), (218, 1011530), (251, 878540), (260, 848129), (310, 711334), (403, 547180), (436, 505765), (502, 439270), (545, 404612), (620, 355667), (806, 273590), (1004, 219635), (1090, 202306), (1255, 175708), (1417, 155620), (1612, 136795), (2015, 109436), (2180, 101153), (2510, 87854), (2834, 77810), (3263, 67580), (3379, 65260), (4030, 54718), (5020, 43927), (5668, 38905), (6526, 33790), (6758, 32630), (7085, 31124), (7781, 28340), (8060, 27359), (13052, 16895), (13516, 16315), (14170, 15562)]