193140680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 443232000

約数和(自身を除く): 250091320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 227, 239, 356, 445, 454, 478, 712, 890, 908, 956, 1135, 1195, 1780, 1816, 1912, 2270, 2390, 3560, 4540, 4780, 9080, 9560, 20203, 21271, 40406, 42542, 54253, 80812, 85084, 101015, 106355, 108506, 161624, 170168, 202030, 212710, 217012, 271265, 404060, 425420, 434024, 542530, 808120, 850840, 1085060, 2170120, 4828517, 9657034, 19314068, 24142585, 38628136, 48285170, 96570340, 193140680]

約数ペア:

[(1, 193140680), (2, 96570340), (4, 48285170), (5, 38628136), (8, 24142585), (10, 19314068), (20, 9657034), (40, 4828517), (89, 2170120), (178, 1085060), (227, 850840), (239, 808120), (356, 542530), (445, 434024), (454, 425420), (478, 404060), (712, 271265), (890, 217012), (908, 212710), (956, 202030), (1135, 170168), (1195, 161624), (1780, 108506), (1816, 106355), (1912, 101015), (2270, 85084), (2390, 80812), (3560, 54253), (4540, 42542), (4780, 40406), (9080, 21271), (9560, 20203)]