639298620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{122471}}^1$

素因数の和:122515

約数の個数: 72

約数和(自身を含む): 2006091360

約数和(自身を除く): 1366792740

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, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 122471, 244942, 367413, 489884, 612355, 734826, 1102239, 1224710, 1469652, 1837065, 2204478, 2449420, 3551659, 3674130, 4408956, 5511195, 7103318, 7348260, 10654977, 11022390, 14206636, 17758295, 21309954, 22044780, 31964931, 35516590, 42619908, 53274885, 63929862, 71033180, 106549770, 127859724, 159824655, 213099540, 319649310, 639298620]

約数ペア:

[(1, 639298620), (2, 319649310), (3, 213099540), (4, 159824655), (5, 127859724), (6, 106549770), (9, 71033180), (10, 63929862), (12, 53274885), (15, 42619908), (18, 35516590), (20, 31964931), (29, 22044780), (30, 21309954), (36, 17758295), (45, 14206636), (58, 11022390), (60, 10654977), (87, 7348260), (90, 7103318), (116, 5511195), (145, 4408956), (174, 3674130), (180, 3551659), (261, 2449420), (290, 2204478), (348, 1837065), (435, 1469652), (522, 1224710), (580, 1102239), (870, 734826), (1044, 612355), (1305, 489884), (1740, 367413), (2610, 244942), (5220, 122471)]