81613890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:568

約数の個数: 96

約数和(自身を含む): 224415360

約数和(自身を除く): 142801470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 89, 90, 115, 138, 178, 207, 230, 267, 345, 414, 443, 445, 534, 690, 801, 886, 890, 1035, 1329, 1335, 1602, 2047, 2070, 2215, 2658, 2670, 3987, 4005, 4094, 4430, 6141, 6645, 7974, 8010, 10189, 10235, 12282, 13290, 18423, 19935, 20378, 20470, 30567, 30705, 36846, 39427, 39870, 50945, 61134, 61410, 78854, 91701, 92115, 101890, 118281, 152835, 183402, 184230, 197135, 236562, 305670, 354843, 394270, 458505, 591405, 709686, 906821, 917010, 1182810, 1774215, 1813642, 2720463, 3548430, 4534105, 5440926, 8161389, 9068210, 13602315, 16322778, 27204630, 40806945, 81613890]

約数ペア:

[(1, 81613890), (2, 40806945), (3, 27204630), (5, 16322778), (6, 13602315), (9, 9068210), (10, 8161389), (15, 5440926), (18, 4534105), (23, 3548430), (30, 2720463), (45, 1813642), (46, 1774215), (69, 1182810), (89, 917010), (90, 906821), (115, 709686), (138, 591405), (178, 458505), (207, 394270), (230, 354843), (267, 305670), (345, 236562), (414, 197135), (443, 184230), (445, 183402), (534, 152835), (690, 118281), (801, 101890), (886, 92115), (890, 91701), (1035, 78854), (1329, 61410), (1335, 61134), (1602, 50945), (2047, 39870), (2070, 39427), (2215, 36846), (2658, 30705), (2670, 30567), (3987, 20470), (4005, 20378), (4094, 19935), (4430, 18423), (6141, 13290), (6645, 12282), (7974, 10235), (8010, 10189)]