168574780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1771

約数の個数: 72

約数和(自身を含む): 398840400

約数和(自身を除く): 230265620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 410, 451, 484, 605, 820, 902, 1210, 1699, 1804, 2255, 2420, 3398, 4510, 4961, 6796, 8495, 9020, 9922, 16990, 18689, 19844, 24805, 33980, 37378, 49610, 69659, 74756, 93445, 99220, 139318, 186890, 205579, 278636, 348295, 373780, 411158, 696590, 766249, 822316, 1027895, 1393180, 1532498, 2055790, 3064996, 3831245, 4111580, 7662490, 8428739, 15324980, 16857478, 33714956, 42143695, 84287390, 168574780]

約数ペア:

[(1, 168574780), (2, 84287390), (4, 42143695), (5, 33714956), (10, 16857478), (11, 15324980), (20, 8428739), (22, 7662490), (41, 4111580), (44, 3831245), (55, 3064996), (82, 2055790), (110, 1532498), (121, 1393180), (164, 1027895), (205, 822316), (220, 766249), (242, 696590), (410, 411158), (451, 373780), (484, 348295), (605, 278636), (820, 205579), (902, 186890), (1210, 139318), (1699, 99220), (1804, 93445), (2255, 74756), (2420, 69659), (3398, 49610), (4510, 37378), (4961, 33980), (6796, 24805), (8495, 19844), (9020, 18689), (9922, 16990)]