159777220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{823}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 356323968

約数和(自身を除く): 196546748

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 571, 823, 1142, 1646, 2284, 2855, 3292, 4115, 5710, 8230, 9707, 11420, 13991, 16460, 19414, 27982, 38828, 48535, 55964, 69955, 97070, 139910, 194140, 279820, 469933, 939866, 1879732, 2349665, 4699330, 7988861, 9398660, 15977722, 31955444, 39944305, 79888610, 159777220]

約数ペア:

[(1, 159777220), (2, 79888610), (4, 39944305), (5, 31955444), (10, 15977722), (17, 9398660), (20, 7988861), (34, 4699330), (68, 2349665), (85, 1879732), (170, 939866), (340, 469933), (571, 279820), (823, 194140), (1142, 139910), (1646, 97070), (2284, 69955), (2855, 55964), (3292, 48535), (4115, 38828), (5710, 27982), (8230, 19414), (9707, 16460), (11420, 13991)]