19230520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 45256320

約数和(自身を除く): 26025800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 188, 193, 212, 235, 265, 376, 386, 424, 470, 530, 772, 940, 965, 1060, 1544, 1880, 1930, 2120, 2491, 3860, 4982, 7720, 9071, 9964, 10229, 12455, 18142, 19928, 20458, 24910, 36284, 40916, 45355, 49820, 51145, 72568, 81832, 90710, 99640, 102290, 181420, 204580, 362840, 409160, 480763, 961526, 1923052, 2403815, 3846104, 4807630, 9615260, 19230520]

約数ペア:

[(1, 19230520), (2, 9615260), (4, 4807630), (5, 3846104), (8, 2403815), (10, 1923052), (20, 961526), (40, 480763), (47, 409160), (53, 362840), (94, 204580), (106, 181420), (188, 102290), (193, 99640), (212, 90710), (235, 81832), (265, 72568), (376, 51145), (386, 49820), (424, 45355), (470, 40916), (530, 36284), (772, 24910), (940, 20458), (965, 19928), (1060, 18142), (1544, 12455), (1880, 10229), (1930, 9964), (2120, 9071), (2491, 7720), (3860, 4982)]