65915180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 147420000

約数和(自身を除く): 81504820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 1949, 3382, 3898, 6764, 7796, 8455, 9745, 16910, 19490, 33820, 37031, 38980, 74062, 148124, 173461, 185155, 346922, 370310, 693844, 740620, 867305, 1734610, 3295759, 3469220, 6591518, 13183036, 16478795, 32957590, 65915180]

約数ペア:

[(1, 65915180), (2, 32957590), (4, 16478795), (5, 13183036), (10, 6591518), (19, 3469220), (20, 3295759), (38, 1734610), (76, 867305), (89, 740620), (95, 693844), (178, 370310), (190, 346922), (356, 185155), (380, 173461), (445, 148124), (890, 74062), (1691, 38980), (1780, 37031), (1949, 33820), (3382, 19490), (3898, 16910), (6764, 9745), (7796, 8455)]