12965840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 31872960

約数和(自身を除く): 18907120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 59, 67, 80, 82, 118, 134, 164, 205, 236, 268, 295, 328, 335, 410, 472, 536, 590, 656, 670, 820, 944, 1072, 1180, 1340, 1640, 2360, 2419, 2680, 2747, 3280, 3953, 4720, 4838, 5360, 5494, 7906, 9676, 10988, 12095, 13735, 15812, 19352, 19765, 21976, 24190, 27470, 31624, 38704, 39530, 43952, 48380, 54940, 63248, 79060, 96760, 109880, 158120, 162073, 193520, 219760, 316240, 324146, 648292, 810365, 1296584, 1620730, 2593168, 3241460, 6482920, 12965840]

約数ペア:

[(1, 12965840), (2, 6482920), (4, 3241460), (5, 2593168), (8, 1620730), (10, 1296584), (16, 810365), (20, 648292), (40, 324146), (41, 316240), (59, 219760), (67, 193520), (80, 162073), (82, 158120), (118, 109880), (134, 96760), (164, 79060), (205, 63248), (236, 54940), (268, 48380), (295, 43952), (328, 39530), (335, 38704), (410, 31624), (472, 27470), (536, 24190), (590, 21976), (656, 19765), (670, 19352), (820, 15812), (944, 13735), (1072, 12095), (1180, 10988), (1340, 9676), (1640, 7906), (2360, 5494), (2419, 5360), (2680, 4838), (2747, 4720), (3280, 3953)]