19138840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2357}}^1$

素因数の和:2404

約数の個数: 64

約数和(自身を含む): 50932800

約数和(自身を除く): 31793960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2357, 4060, 4714, 8120, 9428, 11785, 16499, 18856, 23570, 32998, 47140, 65996, 68353, 82495, 94280, 131992, 136706, 164990, 273412, 329980, 341765, 478471, 546824, 659960, 683530, 956942, 1367060, 1913884, 2392355, 2734120, 3827768, 4784710, 9569420, 19138840]

約数ペア:

[(1, 19138840), (2, 9569420), (4, 4784710), (5, 3827768), (7, 2734120), (8, 2392355), (10, 1913884), (14, 1367060), (20, 956942), (28, 683530), (29, 659960), (35, 546824), (40, 478471), (56, 341765), (58, 329980), (70, 273412), (116, 164990), (140, 136706), (145, 131992), (203, 94280), (232, 82495), (280, 68353), (290, 65996), (406, 47140), (580, 32998), (812, 23570), (1015, 18856), (1160, 16499), (1624, 11785), (2030, 9428), (2357, 8120), (4060, 4714)]