81970480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 198674784

約数和(自身を除く): 116704304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 67, 80, 82, 134, 164, 205, 268, 328, 335, 373, 410, 536, 656, 670, 746, 820, 1072, 1340, 1492, 1640, 1865, 2680, 2747, 2984, 3280, 3730, 5360, 5494, 5968, 7460, 10988, 13735, 14920, 15293, 21976, 24991, 27470, 29840, 30586, 43952, 49982, 54940, 61172, 76465, 99964, 109880, 122344, 124955, 152930, 199928, 219760, 244688, 249910, 305860, 399856, 499820, 611720, 999640, 1024631, 1223440, 1999280, 2049262, 4098524, 5123155, 8197048, 10246310, 16394096, 20492620, 40985240, 81970480]

約数ペア:

[(1, 81970480), (2, 40985240), (4, 20492620), (5, 16394096), (8, 10246310), (10, 8197048), (16, 5123155), (20, 4098524), (40, 2049262), (41, 1999280), (67, 1223440), (80, 1024631), (82, 999640), (134, 611720), (164, 499820), (205, 399856), (268, 305860), (328, 249910), (335, 244688), (373, 219760), (410, 199928), (536, 152930), (656, 124955), (670, 122344), (746, 109880), (820, 99964), (1072, 76465), (1340, 61172), (1492, 54940), (1640, 49982), (1865, 43952), (2680, 30586), (2747, 29840), (2984, 27470), (3280, 24991), (3730, 21976), (5360, 15293), (5494, 14920), (5968, 13735), (7460, 10988)]