19123280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 50139648

約数和(自身を除く): 31016368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 701, 880, 1240, 1364, 1402, 1705, 2480, 2728, 2804, 3410, 3505, 5456, 5608, 6820, 7010, 7711, 11216, 13640, 14020, 15422, 21731, 27280, 28040, 30844, 38555, 43462, 56080, 61688, 77110, 86924, 108655, 123376, 154220, 173848, 217310, 239041, 308440, 347696, 434620, 478082, 616880, 869240, 956164, 1195205, 1738480, 1912328, 2390410, 3824656, 4780820, 9561640, 19123280]

約数ペア:

[(1, 19123280), (2, 9561640), (4, 4780820), (5, 3824656), (8, 2390410), (10, 1912328), (11, 1738480), (16, 1195205), (20, 956164), (22, 869240), (31, 616880), (40, 478082), (44, 434620), (55, 347696), (62, 308440), (80, 239041), (88, 217310), (110, 173848), (124, 154220), (155, 123376), (176, 108655), (220, 86924), (248, 77110), (310, 61688), (341, 56080), (440, 43462), (496, 38555), (620, 30844), (682, 28040), (701, 27280), (880, 21731), (1240, 15422), (1364, 14020), (1402, 13640), (1705, 11216), (2480, 7711), (2728, 7010), (2804, 6820), (3410, 5608), (3505, 5456)]