31089870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:890

約数の個数: 96

約数和(自身を含む): 94011840

約数和(自身を除く): 62921970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 61, 63, 70, 90, 105, 122, 126, 183, 210, 305, 315, 366, 427, 549, 610, 630, 809, 854, 915, 1098, 1281, 1618, 1830, 2135, 2427, 2562, 2745, 3843, 4045, 4270, 4854, 5490, 5663, 6405, 7281, 7686, 8090, 11326, 12135, 12810, 14562, 16989, 19215, 24270, 28315, 33978, 36405, 38430, 49349, 50967, 56630, 72810, 84945, 98698, 101934, 148047, 169890, 246745, 254835, 296094, 345443, 444141, 493490, 509670, 690886, 740235, 888282, 1036329, 1480470, 1727215, 2072658, 2220705, 3108987, 3454430, 4441410, 5181645, 6217974, 10363290, 15544935, 31089870]

約数ペア:

[(1, 31089870), (2, 15544935), (3, 10363290), (5, 6217974), (6, 5181645), (7, 4441410), (9, 3454430), (10, 3108987), (14, 2220705), (15, 2072658), (18, 1727215), (21, 1480470), (30, 1036329), (35, 888282), (42, 740235), (45, 690886), (61, 509670), (63, 493490), (70, 444141), (90, 345443), (105, 296094), (122, 254835), (126, 246745), (183, 169890), (210, 148047), (305, 101934), (315, 98698), (366, 84945), (427, 72810), (549, 56630), (610, 50967), (630, 49349), (809, 38430), (854, 36405), (915, 33978), (1098, 28315), (1281, 24270), (1618, 19215), (1830, 16989), (2135, 14562), (2427, 12810), (2562, 12135), (2745, 11326), (3843, 8090), (4045, 7686), (4270, 7281), (4854, 6405), (5490, 5663)]