18942880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 50077440

約数和(自身を除く): 31134560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 80, 88, 94, 110, 160, 176, 188, 220, 229, 235, 352, 376, 440, 458, 470, 517, 752, 880, 916, 940, 1034, 1145, 1504, 1760, 1832, 1880, 2068, 2290, 2519, 2585, 3664, 3760, 4136, 4580, 5038, 5170, 7328, 7520, 8272, 9160, 10076, 10340, 10763, 12595, 16544, 18320, 20152, 20680, 21526, 25190, 36640, 40304, 41360, 43052, 50380, 53815, 80608, 82720, 86104, 100760, 107630, 118393, 172208, 201520, 215260, 236786, 344416, 403040, 430520, 473572, 591965, 861040, 947144, 1183930, 1722080, 1894288, 2367860, 3788576, 4735720, 9471440, 18942880]

約数ペア:

[(1, 18942880), (2, 9471440), (4, 4735720), (5, 3788576), (8, 2367860), (10, 1894288), (11, 1722080), (16, 1183930), (20, 947144), (22, 861040), (32, 591965), (40, 473572), (44, 430520), (47, 403040), (55, 344416), (80, 236786), (88, 215260), (94, 201520), (110, 172208), (160, 118393), (176, 107630), (188, 100760), (220, 86104), (229, 82720), (235, 80608), (352, 53815), (376, 50380), (440, 43052), (458, 41360), (470, 40304), (517, 36640), (752, 25190), (880, 21526), (916, 20680), (940, 20152), (1034, 18320), (1145, 16544), (1504, 12595), (1760, 10763), (1832, 10340), (1880, 10076), (2068, 9160), (2290, 8272), (2519, 7520), (2585, 7328), (3664, 5170), (3760, 5038), (4136, 4580)]