1958890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 32

約数和(自身を含む): 3732480

約数和(自身を除く): 1773590

約数列:

[1, 2, 5, 10, 31, 62, 71, 89, 142, 155, 178, 310, 355, 445, 710, 890, 2201, 2759, 4402, 5518, 6319, 11005, 12638, 13795, 22010, 27590, 31595, 63190, 195889, 391778, 979445, 1958890]

約数ペア:

[(1, 1958890), (2, 979445), (5, 391778), (10, 195889), (31, 63190), (62, 31595), (71, 27590), (89, 22010), (142, 13795), (155, 12638), (178, 11005), (310, 6319), (355, 5518), (445, 4402), (710, 2759), (890, 2201)]