20495604

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 50684480

約数和(自身を除く): 30188876

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 241, 373, 482, 723, 746, 964, 1119, 1446, 1492, 2238, 2892, 4476, 4579, 7087, 9158, 13737, 14174, 18316, 21261, 27474, 28348, 42522, 54948, 85044, 89893, 179786, 269679, 359572, 539358, 1078716, 1707967, 3415934, 5123901, 6831868, 10247802, 20495604]

約数ペア:

[(1, 20495604), (2, 10247802), (3, 6831868), (4, 5123901), (6, 3415934), (12, 1707967), (19, 1078716), (38, 539358), (57, 359572), (76, 269679), (114, 179786), (228, 89893), (241, 85044), (373, 54948), (482, 42522), (723, 28348), (746, 27474), (964, 21261), (1119, 18316), (1446, 14174), (1492, 13737), (2238, 9158), (2892, 7087), (4476, 4579)]