159950020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1823}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 347493888

約数和(自身を除く): 187543868

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 107, 164, 205, 214, 410, 428, 535, 820, 1070, 1823, 2140, 3646, 4387, 7292, 8774, 9115, 17548, 18230, 21935, 36460, 43870, 74743, 87740, 149486, 195061, 298972, 373715, 390122, 747430, 780244, 975305, 1494860, 1950610, 3901220, 7997501, 15995002, 31990004, 39987505, 79975010, 159950020]

約数ペア:

[(1, 159950020), (2, 79975010), (4, 39987505), (5, 31990004), (10, 15995002), (20, 7997501), (41, 3901220), (82, 1950610), (107, 1494860), (164, 975305), (205, 780244), (214, 747430), (410, 390122), (428, 373715), (535, 298972), (820, 195061), (1070, 149486), (1823, 87740), (2140, 74743), (3646, 43870), (4387, 36460), (7292, 21935), (8774, 18230), (9115, 17548)]