18913680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:369

約数の個数: 120

約数和(自身を含む): 64367160

約数和(自身を除く): 45453480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 109, 120, 144, 180, 218, 240, 241, 327, 360, 436, 482, 545, 654, 720, 723, 872, 964, 981, 1090, 1205, 1308, 1446, 1635, 1744, 1928, 1962, 2169, 2180, 2410, 2616, 2892, 3270, 3615, 3856, 3924, 4338, 4360, 4820, 4905, 5232, 5784, 6540, 7230, 7848, 8676, 8720, 9640, 9810, 10845, 11568, 13080, 14460, 15696, 17352, 19280, 19620, 21690, 26160, 26269, 28920, 34704, 39240, 43380, 52538, 57840, 78480, 78807, 86760, 105076, 131345, 157614, 173520, 210152, 236421, 262690, 315228, 394035, 420304, 472842, 525380, 630456, 788070, 945684, 1050760, 1182105, 1260912, 1576140, 1891368, 2101520, 2364210, 3152280, 3782736, 4728420, 6304560, 9456840, 18913680]

約数ペア:

[(1, 18913680), (2, 9456840), (3, 6304560), (4, 4728420), (5, 3782736), (6, 3152280), (8, 2364210), (9, 2101520), (10, 1891368), (12, 1576140), (15, 1260912), (16, 1182105), (18, 1050760), (20, 945684), (24, 788070), (30, 630456), (36, 525380), (40, 472842), (45, 420304), (48, 394035), (60, 315228), (72, 262690), (80, 236421), (90, 210152), (109, 173520), (120, 157614), (144, 131345), (180, 105076), (218, 86760), (240, 78807), (241, 78480), (327, 57840), (360, 52538), (436, 43380), (482, 39240), (545, 34704), (654, 28920), (720, 26269), (723, 26160), (872, 21690), (964, 19620), (981, 19280), (1090, 17352), (1205, 15696), (1308, 14460), (1446, 13080), (1635, 11568), (1744, 10845), (1928, 9810), (1962, 9640), (2169, 8720), (2180, 8676), (2410, 7848), (2616, 7230), (2892, 6540), (3270, 5784), (3615, 5232), (3856, 4905), (3924, 4820), (4338, 4360)]