180997520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2311}}^1$

素因数の和:2424

約数の個数: 80

約数和(自身を含む): 464434560

約数和(自身を除く): 283437040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 712, 880, 890, 979, 1424, 1780, 1958, 2311, 3560, 3916, 4622, 4895, 7120, 7832, 9244, 9790, 11555, 15664, 18488, 19580, 23110, 25421, 36976, 39160, 46220, 50842, 78320, 92440, 101684, 127105, 184880, 203368, 205679, 254210, 406736, 411358, 508420, 822716, 1016840, 1028395, 1645432, 2033680, 2056790, 2262469, 3290864, 4113580, 4524938, 8227160, 9049876, 11312345, 16454320, 18099752, 22624690, 36199504, 45249380, 90498760, 180997520]

約数ペア:

[(1, 180997520), (2, 90498760), (4, 45249380), (5, 36199504), (8, 22624690), (10, 18099752), (11, 16454320), (16, 11312345), (20, 9049876), (22, 8227160), (40, 4524938), (44, 4113580), (55, 3290864), (80, 2262469), (88, 2056790), (89, 2033680), (110, 1645432), (176, 1028395), (178, 1016840), (220, 822716), (356, 508420), (440, 411358), (445, 406736), (712, 254210), (880, 205679), (890, 203368), (979, 184880), (1424, 127105), (1780, 101684), (1958, 92440), (2311, 78320), (3560, 50842), (3916, 46220), (4622, 39160), (4895, 36976), (7120, 25421), (7832, 23110), (9244, 19580), (9790, 18488), (11555, 15664)]