1640295180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{58043}}^1$

素因数の和:58215

約数の個数: 72

約数和(自身を含む): 5007339792

約数和(自身を除く): 3367044612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4710, 5652, 7065, 9420, 14130, 28260, 58043, 116086, 174129, 232172, 290215, 348258, 522387, 580430, 696516, 870645, 1044774, 1160860, 1741290, 2089548, 2611935, 3482580, 5223870, 9112751, 10447740, 18225502, 27338253, 36451004, 45563755, 54676506, 82014759, 91127510, 109353012, 136691265, 164029518, 182255020, 273382530, 328059036, 410073795, 546765060, 820147590, 1640295180]

約数ペア:

[(1, 1640295180), (2, 820147590), (3, 546765060), (4, 410073795), (5, 328059036), (6, 273382530), (9, 182255020), (10, 164029518), (12, 136691265), (15, 109353012), (18, 91127510), (20, 82014759), (30, 54676506), (36, 45563755), (45, 36451004), (60, 27338253), (90, 18225502), (157, 10447740), (180, 9112751), (314, 5223870), (471, 3482580), (628, 2611935), (785, 2089548), (942, 1741290), (1413, 1160860), (1570, 1044774), (1884, 870645), (2355, 696516), (2826, 580430), (3140, 522387), (4710, 348258), (5652, 290215), (7065, 232172), (9420, 174129), (14130, 116086), (28260, 58043)]