13646440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 32250960

約数和(自身を除く): 18604520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 157, 164, 205, 212, 265, 314, 328, 410, 424, 530, 628, 785, 820, 1060, 1256, 1570, 1640, 2120, 2173, 3140, 4346, 6280, 6437, 8321, 8692, 10865, 12874, 16642, 17384, 21730, 25748, 32185, 33284, 41605, 43460, 51496, 64370, 66568, 83210, 86920, 128740, 166420, 257480, 332840, 341161, 682322, 1364644, 1705805, 2729288, 3411610, 6823220, 13646440]

約数ペア:

[(1, 13646440), (2, 6823220), (4, 3411610), (5, 2729288), (8, 1705805), (10, 1364644), (20, 682322), (40, 341161), (41, 332840), (53, 257480), (82, 166420), (106, 128740), (157, 86920), (164, 83210), (205, 66568), (212, 64370), (265, 51496), (314, 43460), (328, 41605), (410, 33284), (424, 32185), (530, 25748), (628, 21730), (785, 17384), (820, 16642), (1060, 12874), (1256, 10865), (1570, 8692), (1640, 8321), (2120, 6437), (2173, 6280), (3140, 4346)]