71233680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:521

約数の個数: 160

約数和(自身を含む): 255340800

約数和(自身を除く): 184107120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 120, 140, 168, 210, 218, 240, 280, 327, 336, 389, 420, 436, 545, 560, 654, 763, 778, 840, 872, 1090, 1167, 1308, 1526, 1556, 1635, 1680, 1744, 1945, 2180, 2289, 2334, 2616, 2723, 3052, 3112, 3270, 3815, 3890, 4360, 4578, 4668, 5232, 5446, 5835, 6104, 6224, 6540, 7630, 7780, 8169, 8720, 9156, 9336, 10892, 11445, 11670, 12208, 13080, 13615, 15260, 15560, 16338, 18312, 18672, 21784, 22890, 23340, 26160, 27230, 30520, 31120, 32676, 36624, 40845, 42401, 43568, 45780, 46680, 54460, 61040, 65352, 81690, 84802, 91560, 93360, 108920, 127203, 130704, 163380, 169604, 183120, 212005, 217840, 254406, 296807, 326760, 339208, 424010, 508812, 593614, 636015, 653520, 678416, 848020, 890421, 1017624, 1187228, 1272030, 1484035, 1696040, 1780842, 2035248, 2374456, 2544060, 2968070, 3392080, 3561684, 4452105, 4748912, 5088120, 5936140, 7123368, 8904210, 10176240, 11872280, 14246736, 17808420, 23744560, 35616840, 71233680]

約数ペア:

[(1, 71233680), (2, 35616840), (3, 23744560), (4, 17808420), (5, 14246736), (6, 11872280), (7, 10176240), (8, 8904210), (10, 7123368), (12, 5936140), (14, 5088120), (15, 4748912), (16, 4452105), (20, 3561684), (21, 3392080), (24, 2968070), (28, 2544060), (30, 2374456), (35, 2035248), (40, 1780842), (42, 1696040), (48, 1484035), (56, 1272030), (60, 1187228), (70, 1017624), (80, 890421), (84, 848020), (105, 678416), (109, 653520), (112, 636015), (120, 593614), (140, 508812), (168, 424010), (210, 339208), (218, 326760), (240, 296807), (280, 254406), (327, 217840), (336, 212005), (389, 183120), (420, 169604), (436, 163380), (545, 130704), (560, 127203), (654, 108920), (763, 93360), (778, 91560), (840, 84802), (872, 81690), (1090, 65352), (1167, 61040), (1308, 54460), (1526, 46680), (1556, 45780), (1635, 43568), (1680, 42401), (1744, 40845), (1945, 36624), (2180, 32676), (2289, 31120), (2334, 30520), (2616, 27230), (2723, 26160), (3052, 23340), (3112, 22890), (3270, 21784), (3815, 18672), (3890, 18312), (4360, 16338), (4578, 15560), (4668, 15260), (5232, 13615), (5446, 13080), (5835, 12208), (6104, 11670), (6224, 11445), (6540, 10892), (7630, 9336), (7780, 9156), (8169, 8720)]