28234780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 70555968

約数和(自身を除く): 42321188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 613, 658, 940, 980, 1226, 1316, 1645, 2303, 2452, 3065, 3290, 4291, 4606, 6130, 6580, 8582, 9212, 11515, 12260, 17164, 21455, 23030, 28811, 30037, 42910, 46060, 57622, 60074, 85820, 115244, 120148, 144055, 150185, 201677, 288110, 300370, 403354, 576220, 600740, 806708, 1008385, 1411739, 2016770, 2823478, 4033540, 5646956, 7058695, 14117390, 28234780]

約数ペア:

[(1, 28234780), (2, 14117390), (4, 7058695), (5, 5646956), (7, 4033540), (10, 2823478), (14, 2016770), (20, 1411739), (28, 1008385), (35, 806708), (47, 600740), (49, 576220), (70, 403354), (94, 300370), (98, 288110), (140, 201677), (188, 150185), (196, 144055), (235, 120148), (245, 115244), (329, 85820), (470, 60074), (490, 57622), (613, 46060), (658, 42910), (940, 30037), (980, 28811), (1226, 23030), (1316, 21455), (1645, 17164), (2303, 12260), (2452, 11515), (3065, 9212), (3290, 8582), (4291, 6580), (4606, 6130)]