25690720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1327}}^1$

素因数の和:1364

約数の個数: 72

約数和(自身を含む): 66763872

約数和(自身を除く): 41073152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1327, 1760, 1936, 2420, 2654, 3872, 4840, 5308, 6635, 9680, 10616, 13270, 14597, 19360, 21232, 26540, 29194, 42464, 53080, 58388, 72985, 106160, 116776, 145970, 160567, 212320, 233552, 291940, 321134, 467104, 583880, 642268, 802835, 1167760, 1284536, 1605670, 2335520, 2569072, 3211340, 5138144, 6422680, 12845360, 25690720]

約数ペア:

[(1, 25690720), (2, 12845360), (4, 6422680), (5, 5138144), (8, 3211340), (10, 2569072), (11, 2335520), (16, 1605670), (20, 1284536), (22, 1167760), (32, 802835), (40, 642268), (44, 583880), (55, 467104), (80, 321134), (88, 291940), (110, 233552), (121, 212320), (160, 160567), (176, 145970), (220, 116776), (242, 106160), (352, 72985), (440, 58388), (484, 53080), (605, 42464), (880, 29194), (968, 26540), (1210, 21232), (1327, 19360), (1760, 14597), (1936, 13270), (2420, 10616), (2654, 9680), (3872, 6635), (4840, 5308)]