28740660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36847}}^1$

素因数の和:36872

約数の個数: 48

約数和(自身を含む): 86666496

約数和(自身を除く): 57925836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36847, 73694, 110541, 147388, 184235, 221082, 368470, 442164, 479011, 552705, 736940, 958022, 1105410, 1437033, 1916044, 2210820, 2395055, 2874066, 4790110, 5748132, 7185165, 9580220, 14370330, 28740660]

約数ペア:

[(1, 28740660), (2, 14370330), (3, 9580220), (4, 7185165), (5, 5748132), (6, 4790110), (10, 2874066), (12, 2395055), (13, 2210820), (15, 1916044), (20, 1437033), (26, 1105410), (30, 958022), (39, 736940), (52, 552705), (60, 479011), (65, 442164), (78, 368470), (130, 221082), (156, 184235), (195, 147388), (260, 110541), (390, 73694), (780, 36847)]