77717680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 189050400

約数和(自身を除く): 111332720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 139, 145, 232, 241, 278, 290, 464, 482, 556, 580, 695, 964, 1112, 1160, 1205, 1390, 1928, 2224, 2320, 2410, 2780, 3856, 4031, 4820, 5560, 6989, 8062, 9640, 11120, 13978, 16124, 19280, 20155, 27956, 32248, 33499, 34945, 40310, 55912, 64496, 66998, 69890, 80620, 111824, 133996, 139780, 161240, 167495, 267992, 279560, 322480, 334990, 535984, 559120, 669980, 971471, 1339960, 1942942, 2679920, 3885884, 4857355, 7771768, 9714710, 15543536, 19429420, 38858840, 77717680]

約数ペア:

[(1, 77717680), (2, 38858840), (4, 19429420), (5, 15543536), (8, 9714710), (10, 7771768), (16, 4857355), (20, 3885884), (29, 2679920), (40, 1942942), (58, 1339960), (80, 971471), (116, 669980), (139, 559120), (145, 535984), (232, 334990), (241, 322480), (278, 279560), (290, 267992), (464, 167495), (482, 161240), (556, 139780), (580, 133996), (695, 111824), (964, 80620), (1112, 69890), (1160, 66998), (1205, 64496), (1390, 55912), (1928, 40310), (2224, 34945), (2320, 33499), (2410, 32248), (2780, 27956), (3856, 20155), (4031, 19280), (4820, 16124), (5560, 13978), (6989, 11120), (8062, 9640)]