6666400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:674

約数の個数: 72

約数和(自身を含む): 17553564

約数和(自身を除く): 10887164

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 641, 650, 800, 1040, 1282, 1300, 2080, 2564, 2600, 3205, 5128, 5200, 6410, 8333, 10256, 10400, 12820, 16025, 16666, 20512, 25640, 32050, 33332, 41665, 51280, 64100, 66664, 83330, 102560, 128200, 133328, 166660, 208325, 256400, 266656, 333320, 416650, 512800, 666640, 833300, 1333280, 1666600, 3333200, 6666400]

約数ペア:

[(1, 6666400), (2, 3333200), (4, 1666600), (5, 1333280), (8, 833300), (10, 666640), (13, 512800), (16, 416650), (20, 333320), (25, 266656), (26, 256400), (32, 208325), (40, 166660), (50, 133328), (52, 128200), (65, 102560), (80, 83330), (100, 66664), (104, 64100), (130, 51280), (160, 41665), (200, 33332), (208, 32050), (260, 25640), (325, 20512), (400, 16666), (416, 16025), (520, 12820), (641, 10400), (650, 10256), (800, 8333), (1040, 6410), (1282, 5200), (1300, 5128), (2080, 3205), (2564, 2600)]