248560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:265

約数の個数: 40

約数和(自身を含む): 624960

約数和(自身を除く): 376400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 239, 260, 478, 520, 956, 1040, 1195, 1912, 2390, 3107, 3824, 4780, 6214, 9560, 12428, 15535, 19120, 24856, 31070, 49712, 62140, 124280, 248560]

約数ペア:

[(1, 248560), (2, 124280), (4, 62140), (5, 49712), (8, 31070), (10, 24856), (13, 19120), (16, 15535), (20, 12428), (26, 9560), (40, 6214), (52, 4780), (65, 3824), (80, 3107), (104, 2390), (130, 1912), (208, 1195), (239, 1040), (260, 956), (478, 520)]