209649636

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{757}}^1$

素因数の和:938

約数の個数: 108

約数和(自身を含む): 621215868

約数和(自身を除く): 411566232

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 157, 196, 252, 294, 314, 441, 471, 588, 628, 757, 882, 942, 1099, 1413, 1514, 1764, 1884, 2198, 2271, 2826, 3028, 3297, 4396, 4542, 5299, 5652, 6594, 6813, 7693, 9084, 9891, 10598, 13188, 13626, 15386, 15897, 19782, 21196, 23079, 27252, 30772, 31794, 37093, 39564, 46158, 47691, 63588, 69237, 74186, 92316, 95382, 111279, 118849, 138474, 148372, 190764, 222558, 237698, 276948, 333837, 356547, 445116, 475396, 667674, 713094, 831943, 1069641, 1335348, 1426188, 1663886, 2139282, 2495829, 3327772, 4278564, 4991658, 5823601, 7487487, 9983316, 11647202, 14974974, 17470803, 23294404, 29949948, 34941606, 52412409, 69883212, 104824818, 209649636]

約数ペア:

[(1, 209649636), (2, 104824818), (3, 69883212), (4, 52412409), (6, 34941606), (7, 29949948), (9, 23294404), (12, 17470803), (14, 14974974), (18, 11647202), (21, 9983316), (28, 7487487), (36, 5823601), (42, 4991658), (49, 4278564), (63, 3327772), (84, 2495829), (98, 2139282), (126, 1663886), (147, 1426188), (157, 1335348), (196, 1069641), (252, 831943), (294, 713094), (314, 667674), (441, 475396), (471, 445116), (588, 356547), (628, 333837), (757, 276948), (882, 237698), (942, 222558), (1099, 190764), (1413, 148372), (1514, 138474), (1764, 118849), (1884, 111279), (2198, 95382), (2271, 92316), (2826, 74186), (3028, 69237), (3297, 63588), (4396, 47691), (4542, 46158), (5299, 39564), (5652, 37093), (6594, 31794), (6813, 30772), (7693, 27252), (9084, 23079), (9891, 21196), (10598, 19782), (13188, 15897), (13626, 15386)]