172003180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1530

約数の個数: 48

約数和(自身を含む): 370681920

約数和(自身を除く): 198678740

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1361, 1420, 1780, 2722, 5444, 6319, 6805, 12638, 13610, 25276, 27220, 31595, 63190, 96631, 121129, 126380, 193262, 242258, 386524, 483155, 484516, 605645, 966310, 1211290, 1932620, 2422580, 8600159, 17200318, 34400636, 43000795, 86001590, 172003180]

約数ペア:

[(1, 172003180), (2, 86001590), (4, 43000795), (5, 34400636), (10, 17200318), (20, 8600159), (71, 2422580), (89, 1932620), (142, 1211290), (178, 966310), (284, 605645), (355, 484516), (356, 483155), (445, 386524), (710, 242258), (890, 193262), (1361, 126380), (1420, 121129), (1780, 96631), (2722, 63190), (5444, 31595), (6319, 27220), (6805, 25276), (12638, 13610)]