31139220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:661

約数の個数: 96

約数和(自身を含む): 100509696

約数和(自身を除く): 69370476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 151, 210, 302, 420, 453, 491, 604, 755, 906, 982, 1057, 1473, 1510, 1812, 1964, 2114, 2265, 2455, 2946, 3020, 3171, 3437, 4228, 4530, 4910, 5285, 5892, 6342, 6874, 7365, 9060, 9820, 10311, 10570, 12684, 13748, 14730, 15855, 17185, 20622, 21140, 29460, 31710, 34370, 41244, 51555, 63420, 68740, 74141, 103110, 148282, 206220, 222423, 296564, 370705, 444846, 518987, 741410, 889692, 1037974, 1112115, 1482820, 1556961, 2075948, 2224230, 2594935, 3113922, 4448460, 5189870, 6227844, 7784805, 10379740, 15569610, 31139220]

約数ペア:

[(1, 31139220), (2, 15569610), (3, 10379740), (4, 7784805), (5, 6227844), (6, 5189870), (7, 4448460), (10, 3113922), (12, 2594935), (14, 2224230), (15, 2075948), (20, 1556961), (21, 1482820), (28, 1112115), (30, 1037974), (35, 889692), (42, 741410), (60, 518987), (70, 444846), (84, 370705), (105, 296564), (140, 222423), (151, 206220), (210, 148282), (302, 103110), (420, 74141), (453, 68740), (491, 63420), (604, 51555), (755, 41244), (906, 34370), (982, 31710), (1057, 29460), (1473, 21140), (1510, 20622), (1812, 17185), (1964, 15855), (2114, 14730), (2265, 13748), (2455, 12684), (2946, 10570), (3020, 10311), (3171, 9820), (3437, 9060), (4228, 7365), (4530, 6874), (4910, 6342), (5285, 5892)]