81400560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17851}}^1$

素因数の和:17886

約数の個数: 80

約数和(自身を含む): 265637760

約数和(自身を除く): 184237200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17851, 35702, 53553, 71404, 89255, 107106, 142808, 178510, 214212, 267765, 285616, 339169, 357020, 428424, 535530, 678338, 714040, 856848, 1017507, 1071060, 1356676, 1428080, 1695845, 2035014, 2142120, 2713352, 3391690, 4070028, 4284240, 5087535, 5426704, 6783380, 8140056, 10175070, 13566760, 16280112, 20350140, 27133520, 40700280, 81400560]

約数ペア:

[(1, 81400560), (2, 40700280), (3, 27133520), (4, 20350140), (5, 16280112), (6, 13566760), (8, 10175070), (10, 8140056), (12, 6783380), (15, 5426704), (16, 5087535), (19, 4284240), (20, 4070028), (24, 3391690), (30, 2713352), (38, 2142120), (40, 2035014), (48, 1695845), (57, 1428080), (60, 1356676), (76, 1071060), (80, 1017507), (95, 856848), (114, 714040), (120, 678338), (152, 535530), (190, 428424), (228, 357020), (240, 339169), (285, 285616), (304, 267765), (380, 214212), (456, 178510), (570, 142808), (760, 107106), (912, 89255), (1140, 71404), (1520, 53553), (2280, 35702), (4560, 17851)]