19388484940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{7487}}^1$

素因数の和:7735

約数の個数: 96

約数和(自身を含む): 45287424000

約数和(自身を除く): 25898939060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 149, 158, 220, 298, 316, 395, 596, 745, 790, 869, 1490, 1580, 1639, 1738, 2980, 3278, 3476, 4345, 6556, 7487, 8195, 8690, 11771, 14974, 16390, 17380, 23542, 29948, 32780, 37435, 47084, 58855, 74870, 82357, 117710, 129481, 149740, 164714, 235420, 258962, 329428, 411785, 517924, 591473, 647405, 823570, 1115563, 1182946, 1294810, 1647140, 2231126, 2365892, 2589620, 2957365, 4462252, 5577815, 5914730, 6506203, 11155630, 11829460, 12271193, 13012406, 22311260, 24542386, 26024812, 32531015, 49084772, 61355965, 65062030, 88129477, 122711930, 130124060, 176258954, 245423860, 352517908, 440647385, 881294770, 969424247, 1762589540, 1938848494, 3877696988, 4847121235, 9694242470, 19388484940]

約数ペア:

[(1, 19388484940), (2, 9694242470), (4, 4847121235), (5, 3877696988), (10, 1938848494), (11, 1762589540), (20, 969424247), (22, 881294770), (44, 440647385), (55, 352517908), (79, 245423860), (110, 176258954), (149, 130124060), (158, 122711930), (220, 88129477), (298, 65062030), (316, 61355965), (395, 49084772), (596, 32531015), (745, 26024812), (790, 24542386), (869, 22311260), (1490, 13012406), (1580, 12271193), (1639, 11829460), (1738, 11155630), (2980, 6506203), (3278, 5914730), (3476, 5577815), (4345, 4462252), (6556, 2957365), (7487, 2589620), (8195, 2365892), (8690, 2231126), (11771, 1647140), (14974, 1294810), (16390, 1182946), (17380, 1115563), (23542, 823570), (29948, 647405), (32780, 591473), (37435, 517924), (47084, 411785), (58855, 329428), (74870, 258962), (82357, 235420), (117710, 164714), (129481, 149740)]