352726580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{2791}}^1$

素因数の和:2960

約数の個数: 48

約数和(自身を含む): 759870720

約数和(自身を除く): 407144140

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1420, 1780, 2791, 5582, 6319, 11164, 12638, 13955, 25276, 27910, 31595, 55820, 63190, 126380, 198161, 248399, 396322, 496798, 792644, 990805, 993596, 1241995, 1981610, 2483990, 3963220, 4967980, 17636329, 35272658, 70545316, 88181645, 176363290, 352726580]

約数ペア:

[(1, 352726580), (2, 176363290), (4, 88181645), (5, 70545316), (10, 35272658), (20, 17636329), (71, 4967980), (89, 3963220), (142, 2483990), (178, 1981610), (284, 1241995), (355, 993596), (356, 990805), (445, 792644), (710, 496798), (890, 396322), (1420, 248399), (1780, 198161), (2791, 126380), (5582, 63190), (6319, 55820), (11164, 31595), (12638, 27910), (13955, 25276)]