128867580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1889}}^1$

素因数の和:2283

約数の個数: 72

約数和(自身を含む): 392137200

約数和(自身を除く): 263269620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 379, 758, 1137, 1516, 1889, 1895, 2274, 3411, 3778, 3790, 4548, 5667, 5685, 6822, 7556, 7580, 9445, 11334, 11370, 13644, 17001, 17055, 18890, 22668, 22740, 28335, 34002, 34110, 37780, 56670, 68004, 68220, 85005, 113340, 170010, 340020, 715931, 1431862, 2147793, 2863724, 3579655, 4295586, 6443379, 7159310, 8591172, 10738965, 12886758, 14318620, 21477930, 25773516, 32216895, 42955860, 64433790, 128867580]

約数ペア:

[(1, 128867580), (2, 64433790), (3, 42955860), (4, 32216895), (5, 25773516), (6, 21477930), (9, 14318620), (10, 12886758), (12, 10738965), (15, 8591172), (18, 7159310), (20, 6443379), (30, 4295586), (36, 3579655), (45, 2863724), (60, 2147793), (90, 1431862), (180, 715931), (379, 340020), (758, 170010), (1137, 113340), (1516, 85005), (1889, 68220), (1895, 68004), (2274, 56670), (3411, 37780), (3778, 34110), (3790, 34002), (4548, 28335), (5667, 22740), (5685, 22668), (6822, 18890), (7556, 17055), (7580, 17001), (9445, 13644), (11334, 11370)]