819540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 2588040

約数和(自身を除く): 1768500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 157, 174, 180, 261, 290, 314, 348, 435, 471, 522, 580, 628, 785, 870, 942, 1044, 1305, 1413, 1570, 1740, 1884, 2355, 2610, 2826, 3140, 4553, 4710, 5220, 5652, 7065, 9106, 9420, 13659, 14130, 18212, 22765, 27318, 28260, 40977, 45530, 54636, 68295, 81954, 91060, 136590, 163908, 204885, 273180, 409770, 819540]

約数ペア:

[(1, 819540), (2, 409770), (3, 273180), (4, 204885), (5, 163908), (6, 136590), (9, 91060), (10, 81954), (12, 68295), (15, 54636), (18, 45530), (20, 40977), (29, 28260), (30, 27318), (36, 22765), (45, 18212), (58, 14130), (60, 13659), (87, 9420), (90, 9106), (116, 7065), (145, 5652), (157, 5220), (174, 4710), (180, 4553), (261, 3140), (290, 2826), (314, 2610), (348, 2355), (435, 1884), (471, 1740), (522, 1570), (580, 1413), (628, 1305), (785, 1044), (870, 942)]