42878680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6343}}^1$

素因数の和:6380

約数の個数: 48

約数和(自身を含む): 104485680

約数和(自身を除く): 61607000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6343, 6760, 12686, 25372, 31715, 50744, 63430, 82459, 126860, 164918, 253720, 329836, 412295, 659672, 824590, 1071967, 1649180, 2143934, 3298360, 4287868, 5359835, 8575736, 10719670, 21439340, 42878680]

約数ペア:

[(1, 42878680), (2, 21439340), (4, 10719670), (5, 8575736), (8, 5359835), (10, 4287868), (13, 3298360), (20, 2143934), (26, 1649180), (40, 1071967), (52, 824590), (65, 659672), (104, 412295), (130, 329836), (169, 253720), (260, 164918), (338, 126860), (520, 82459), (676, 63430), (845, 50744), (1352, 31715), (1690, 25372), (3380, 12686), (6343, 6760)]