18144880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 46247040

約数和(自身を除く): 28102160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 239, 260, 292, 365, 478, 520, 584, 730, 949, 956, 1040, 1168, 1195, 1460, 1898, 1912, 2390, 2920, 3107, 3796, 3824, 4745, 4780, 5840, 6214, 7592, 9490, 9560, 12428, 15184, 15535, 17447, 18980, 19120, 24856, 31070, 34894, 37960, 49712, 62140, 69788, 75920, 87235, 124280, 139576, 174470, 226811, 248560, 279152, 348940, 453622, 697880, 907244, 1134055, 1395760, 1814488, 2268110, 3628976, 4536220, 9072440, 18144880]

約数ペア:

[(1, 18144880), (2, 9072440), (4, 4536220), (5, 3628976), (8, 2268110), (10, 1814488), (13, 1395760), (16, 1134055), (20, 907244), (26, 697880), (40, 453622), (52, 348940), (65, 279152), (73, 248560), (80, 226811), (104, 174470), (130, 139576), (146, 124280), (208, 87235), (239, 75920), (260, 69788), (292, 62140), (365, 49712), (478, 37960), (520, 34894), (584, 31070), (730, 24856), (949, 19120), (956, 18980), (1040, 17447), (1168, 15535), (1195, 15184), (1460, 12428), (1898, 9560), (1912, 9490), (2390, 7592), (2920, 6214), (3107, 5840), (3796, 4780), (3824, 4745)]