31176180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 109549440

約数和(自身を除く): 78373260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 109, 126, 140, 180, 210, 218, 227, 252, 315, 327, 420, 436, 454, 545, 630, 654, 681, 763, 908, 981, 1090, 1135, 1260, 1308, 1362, 1526, 1589, 1635, 1962, 2043, 2180, 2270, 2289, 2724, 3052, 3178, 3270, 3405, 3815, 3924, 4086, 4540, 4578, 4767, 4905, 6356, 6540, 6810, 6867, 7630, 7945, 8172, 9156, 9534, 9810, 10215, 11445, 13620, 13734, 14301, 15260, 15890, 19068, 19620, 20430, 22890, 23835, 24743, 27468, 28602, 31780, 34335, 40860, 45780, 47670, 49486, 57204, 68670, 71505, 74229, 95340, 98972, 123715, 137340, 143010, 148458, 173201, 222687, 247430, 286020, 296916, 346402, 371145, 445374, 494860, 519603, 692804, 742290, 866005, 890748, 1039206, 1113435, 1484580, 1558809, 1732010, 2078412, 2226870, 2598015, 3117618, 3464020, 4453740, 5196030, 6235236, 7794045, 10392060, 15588090, 31176180]

約数ペア:

[(1, 31176180), (2, 15588090), (3, 10392060), (4, 7794045), (5, 6235236), (6, 5196030), (7, 4453740), (9, 3464020), (10, 3117618), (12, 2598015), (14, 2226870), (15, 2078412), (18, 1732010), (20, 1558809), (21, 1484580), (28, 1113435), (30, 1039206), (35, 890748), (36, 866005), (42, 742290), (45, 692804), (60, 519603), (63, 494860), (70, 445374), (84, 371145), (90, 346402), (105, 296916), (109, 286020), (126, 247430), (140, 222687), (180, 173201), (210, 148458), (218, 143010), (227, 137340), (252, 123715), (315, 98972), (327, 95340), (420, 74229), (436, 71505), (454, 68670), (545, 57204), (630, 49486), (654, 47670), (681, 45780), (763, 40860), (908, 34335), (981, 31780), (1090, 28602), (1135, 27468), (1260, 24743), (1308, 23835), (1362, 22890), (1526, 20430), (1589, 19620), (1635, 19068), (1962, 15890), (2043, 15260), (2180, 14301), (2270, 13734), (2289, 13620), (2724, 11445), (3052, 10215), (3178, 9810), (3270, 9534), (3405, 9156), (3815, 8172), (3924, 7945), (4086, 7630), (4540, 6867), (4578, 6810), (4767, 6540), (4905, 6356)]