80538320

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7927}}^1$

素因数の和:8067

約数の個数: 40

約数和(自身を含む): 188749824

約数和(自身を除く): 108211504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 7927, 10160, 15854, 31708, 39635, 63416, 79270, 126832, 158540, 317080, 634160, 1006729, 2013458, 4026916, 5033645, 8053832, 10067290, 16107664, 20134580, 40269160, 80538320]

約数ペア:

[(1, 80538320), (2, 40269160), (4, 20134580), (5, 16107664), (8, 10067290), (10, 8053832), (16, 5033645), (20, 4026916), (40, 2013458), (80, 1006729), (127, 634160), (254, 317080), (508, 158540), (635, 126832), (1016, 79270), (1270, 63416), (2032, 39635), (2540, 31708), (5080, 15854), (7927, 10160)]