27989220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:769

約数の個数: 96

約数和(自身を含む): 90574848

約数和(自身を除く): 62585628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 103, 105, 140, 206, 210, 309, 412, 420, 515, 618, 647, 721, 1030, 1236, 1294, 1442, 1545, 1941, 2060, 2163, 2588, 2884, 3090, 3235, 3605, 3882, 4326, 4529, 6180, 6470, 7210, 7764, 8652, 9058, 9705, 10815, 12940, 13587, 14420, 18116, 19410, 21630, 22645, 27174, 38820, 43260, 45290, 54348, 66641, 67935, 90580, 133282, 135870, 199923, 266564, 271740, 333205, 399846, 466487, 666410, 799692, 932974, 999615, 1332820, 1399461, 1865948, 1999230, 2332435, 2798922, 3998460, 4664870, 5597844, 6997305, 9329740, 13994610, 27989220]

約数ペア:

[(1, 27989220), (2, 13994610), (3, 9329740), (4, 6997305), (5, 5597844), (6, 4664870), (7, 3998460), (10, 2798922), (12, 2332435), (14, 1999230), (15, 1865948), (20, 1399461), (21, 1332820), (28, 999615), (30, 932974), (35, 799692), (42, 666410), (60, 466487), (70, 399846), (84, 333205), (103, 271740), (105, 266564), (140, 199923), (206, 135870), (210, 133282), (309, 90580), (412, 67935), (420, 66641), (515, 54348), (618, 45290), (647, 43260), (721, 38820), (1030, 27174), (1236, 22645), (1294, 21630), (1442, 19410), (1545, 18116), (1941, 14420), (2060, 13587), (2163, 12940), (2588, 10815), (2884, 9705), (3090, 9058), (3235, 8652), (3605, 7764), (3882, 7210), (4326, 6470), (4529, 6180)]