18761740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 23221460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 509, 970, 1018, 1843, 1940, 2036, 2545, 3686, 5090, 7372, 9215, 9671, 10180, 18430, 19342, 36860, 38684, 48355, 49373, 96710, 98746, 193420, 197492, 246865, 493730, 938087, 987460, 1876174, 3752348, 4690435, 9380870, 18761740]

約数ペア:

[(1, 18761740), (2, 9380870), (4, 4690435), (5, 3752348), (10, 1876174), (19, 987460), (20, 938087), (38, 493730), (76, 246865), (95, 197492), (97, 193420), (190, 98746), (194, 96710), (380, 49373), (388, 48355), (485, 38684), (509, 36860), (970, 19342), (1018, 18430), (1843, 10180), (1940, 9671), (2036, 9215), (2545, 7372), (3686, 5090)]