30112780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2857}}^1$

素因数の和:2914

約数の個数: 48

約数和(自身を含む): 69140736

約数和(自身を除く): 39027956

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 2857, 5270, 5714, 10540, 11428, 14285, 28570, 48569, 57140, 88567, 97138, 177134, 194276, 242845, 354268, 442835, 485690, 885670, 971380, 1505639, 1771340, 3011278, 6022556, 7528195, 15056390, 30112780]

約数ペア:

[(1, 30112780), (2, 15056390), (4, 7528195), (5, 6022556), (10, 3011278), (17, 1771340), (20, 1505639), (31, 971380), (34, 885670), (62, 485690), (68, 442835), (85, 354268), (124, 242845), (155, 194276), (170, 177134), (310, 97138), (340, 88567), (527, 57140), (620, 48569), (1054, 28570), (2108, 14285), (2635, 11428), (2857, 10540), (5270, 5714)]