71219988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1117

約数の個数: 72

約数和(自身を含む): 206548160

約数和(自身を除く): 135328172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 409, 691, 818, 1227, 1382, 1636, 2073, 2454, 2764, 2863, 3681, 4146, 4837, 4908, 5726, 6219, 7362, 8292, 8589, 9674, 11452, 12438, 14511, 14724, 17178, 19348, 24876, 25767, 29022, 34356, 43533, 51534, 58044, 87066, 103068, 174132, 282619, 565238, 847857, 1130476, 1695714, 1978333, 2543571, 3391428, 3956666, 5087142, 5934999, 7913332, 10174284, 11869998, 17804997, 23739996, 35609994, 71219988]

約数ペア:

[(1, 71219988), (2, 35609994), (3, 23739996), (4, 17804997), (6, 11869998), (7, 10174284), (9, 7913332), (12, 5934999), (14, 5087142), (18, 3956666), (21, 3391428), (28, 2543571), (36, 1978333), (42, 1695714), (63, 1130476), (84, 847857), (126, 565238), (252, 282619), (409, 174132), (691, 103068), (818, 87066), (1227, 58044), (1382, 51534), (1636, 43533), (2073, 34356), (2454, 29022), (2764, 25767), (2863, 24876), (3681, 19348), (4146, 17178), (4837, 14724), (4908, 14511), (5726, 12438), (6219, 11452), (7362, 9674), (8292, 8589)]