28649320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 76826880

約数和(自身を除く): 48177560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 49, 56, 70, 94, 98, 140, 188, 196, 235, 245, 280, 311, 329, 376, 392, 470, 490, 622, 658, 940, 980, 1244, 1316, 1555, 1645, 1880, 1960, 2177, 2303, 2488, 2632, 3110, 3290, 4354, 4606, 6220, 6580, 8708, 9212, 10885, 11515, 12440, 13160, 14617, 15239, 17416, 18424, 21770, 23030, 29234, 30478, 43540, 46060, 58468, 60956, 73085, 76195, 87080, 92120, 102319, 116936, 121912, 146170, 152390, 204638, 292340, 304780, 409276, 511595, 584680, 609560, 716233, 818552, 1023190, 1432466, 2046380, 2864932, 3581165, 4092760, 5729864, 7162330, 14324660, 28649320]

約数ペア:

[(1, 28649320), (2, 14324660), (4, 7162330), (5, 5729864), (7, 4092760), (8, 3581165), (10, 2864932), (14, 2046380), (20, 1432466), (28, 1023190), (35, 818552), (40, 716233), (47, 609560), (49, 584680), (56, 511595), (70, 409276), (94, 304780), (98, 292340), (140, 204638), (188, 152390), (196, 146170), (235, 121912), (245, 116936), (280, 102319), (311, 92120), (329, 87080), (376, 76195), (392, 73085), (470, 60956), (490, 58468), (622, 46060), (658, 43540), (940, 30478), (980, 29234), (1244, 23030), (1316, 21770), (1555, 18424), (1645, 17416), (1880, 15239), (1960, 14617), (2177, 13160), (2303, 12440), (2488, 11515), (2632, 10885), (3110, 9212), (3290, 8708), (4354, 6580), (4606, 6220)]