72405808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 157132800

約数和(自身を除く): 84726992

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 43, 58, 76, 86, 116, 152, 172, 191, 232, 304, 344, 382, 464, 551, 688, 764, 817, 1102, 1247, 1528, 1634, 2204, 2494, 3056, 3268, 3629, 4408, 4988, 5539, 6536, 7258, 8213, 8816, 9976, 11078, 13072, 14516, 16426, 19952, 22156, 23693, 29032, 32852, 44312, 47386, 58064, 65704, 88624, 94772, 105241, 131408, 156047, 189544, 210482, 238177, 312094, 379088, 420964, 476354, 624188, 841928, 952708, 1248376, 1683856, 1905416, 2496752, 3810832, 4525363, 9050726, 18101452, 36202904, 72405808]

約数ペア:

[(1, 72405808), (2, 36202904), (4, 18101452), (8, 9050726), (16, 4525363), (19, 3810832), (29, 2496752), (38, 1905416), (43, 1683856), (58, 1248376), (76, 952708), (86, 841928), (116, 624188), (152, 476354), (172, 420964), (191, 379088), (232, 312094), (304, 238177), (344, 210482), (382, 189544), (464, 156047), (551, 131408), (688, 105241), (764, 94772), (817, 88624), (1102, 65704), (1247, 58064), (1528, 47386), (1634, 44312), (2204, 32852), (2494, 29032), (3056, 23693), (3268, 22156), (3629, 19952), (4408, 16426), (4988, 14516), (5539, 13072), (6536, 11078), (7258, 9976), (8213, 8816)]