490880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:91

約数の個数: 64

約数和(自身を含む): 1285200

約数和(自身を除く): 794320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 80, 104, 118, 128, 130, 160, 208, 236, 260, 295, 320, 416, 472, 520, 590, 640, 767, 832, 944, 1040, 1180, 1534, 1664, 1888, 2080, 2360, 3068, 3776, 3835, 4160, 4720, 6136, 7552, 7670, 8320, 9440, 12272, 15340, 18880, 24544, 30680, 37760, 49088, 61360, 98176, 122720, 245440, 490880]

約数ペア:

[(1, 490880), (2, 245440), (4, 122720), (5, 98176), (8, 61360), (10, 49088), (13, 37760), (16, 30680), (20, 24544), (26, 18880), (32, 15340), (40, 12272), (52, 9440), (59, 8320), (64, 7670), (65, 7552), (80, 6136), (104, 4720), (118, 4160), (128, 3835), (130, 3776), (160, 3068), (208, 2360), (236, 2080), (260, 1888), (295, 1664), (320, 1534), (416, 1180), (472, 1040), (520, 944), (590, 832), (640, 767)]