199802020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1381

約数の個数: 96

約数和(自身を含む): 496855296

約数和(自身を除く): 297053276

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 41, 44, 55, 68, 82, 85, 110, 164, 170, 187, 205, 220, 340, 374, 410, 451, 697, 748, 820, 902, 935, 1303, 1394, 1804, 1870, 2255, 2606, 2788, 3485, 3740, 4510, 5212, 6515, 6970, 7667, 9020, 13030, 13940, 14333, 15334, 22151, 26060, 28666, 30668, 38335, 44302, 53423, 57332, 71665, 76670, 88604, 106846, 110755, 143330, 153340, 213692, 221510, 243661, 267115, 286660, 443020, 487322, 534230, 587653, 908191, 974644, 1068460, 1175306, 1218305, 1816382, 2350612, 2436610, 2938265, 3632764, 4540955, 4873220, 5876530, 9081910, 9990101, 11753060, 18163820, 19980202, 39960404, 49950505, 99901010, 199802020]

約数ペア:

[(1, 199802020), (2, 99901010), (4, 49950505), (5, 39960404), (10, 19980202), (11, 18163820), (17, 11753060), (20, 9990101), (22, 9081910), (34, 5876530), (41, 4873220), (44, 4540955), (55, 3632764), (68, 2938265), (82, 2436610), (85, 2350612), (110, 1816382), (164, 1218305), (170, 1175306), (187, 1068460), (205, 974644), (220, 908191), (340, 587653), (374, 534230), (410, 487322), (451, 443020), (697, 286660), (748, 267115), (820, 243661), (902, 221510), (935, 213692), (1303, 153340), (1394, 143330), (1804, 110755), (1870, 106846), (2255, 88604), (2606, 76670), (2788, 71665), (3485, 57332), (3740, 53423), (4510, 44302), (5212, 38335), (6515, 30668), (6970, 28666), (7667, 26060), (9020, 22151), (13030, 15334), (13940, 14333)]