20416660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 50948352

約数和(自身を除く): 30531692

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 53, 55, 68, 85, 103, 106, 110, 170, 187, 206, 212, 220, 265, 340, 374, 412, 515, 530, 583, 748, 901, 935, 1030, 1060, 1133, 1166, 1751, 1802, 1870, 2060, 2266, 2332, 2915, 3502, 3604, 3740, 4505, 4532, 5459, 5665, 5830, 7004, 8755, 9010, 9911, 10918, 11330, 11660, 17510, 18020, 19261, 19822, 21836, 22660, 27295, 35020, 38522, 39644, 49555, 54590, 60049, 77044, 92803, 96305, 99110, 109180, 120098, 185606, 192610, 198220, 240196, 300245, 371212, 385220, 464015, 600490, 928030, 1020833, 1200980, 1856060, 2041666, 4083332, 5104165, 10208330, 20416660]

約数ペア:

[(1, 20416660), (2, 10208330), (4, 5104165), (5, 4083332), (10, 2041666), (11, 1856060), (17, 1200980), (20, 1020833), (22, 928030), (34, 600490), (44, 464015), (53, 385220), (55, 371212), (68, 300245), (85, 240196), (103, 198220), (106, 192610), (110, 185606), (170, 120098), (187, 109180), (206, 99110), (212, 96305), (220, 92803), (265, 77044), (340, 60049), (374, 54590), (412, 49555), (515, 39644), (530, 38522), (583, 35020), (748, 27295), (901, 22660), (935, 21836), (1030, 19822), (1060, 19261), (1133, 18020), (1166, 17510), (1751, 11660), (1802, 11330), (1870, 10918), (2060, 9911), (2266, 9010), (2332, 8755), (2915, 7004), (3502, 5830), (3604, 5665), (3740, 5459), (4505, 4532)]