17917957240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{21391}}^1$

素因数の和:21932

約数の個数: 64

約数和(自身を含む): 41339612160

約数和(自身を除く): 23421654920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 487, 860, 974, 1720, 1948, 2435, 3896, 4870, 9740, 19480, 20941, 21391, 41882, 42782, 83764, 85564, 104705, 106955, 167528, 171128, 209410, 213910, 418820, 427820, 837640, 855640, 919813, 1839626, 3679252, 4599065, 7358504, 9198130, 10417417, 18396260, 20834834, 36792520, 41669668, 52087085, 83339336, 104174170, 208348340, 416696680, 447948931, 895897862, 1791795724, 2239744655, 3583591448, 4479489310, 8958978620, 17917957240]

約数ペア:

[(1, 17917957240), (2, 8958978620), (4, 4479489310), (5, 3583591448), (8, 2239744655), (10, 1791795724), (20, 895897862), (40, 447948931), (43, 416696680), (86, 208348340), (172, 104174170), (215, 83339336), (344, 52087085), (430, 41669668), (487, 36792520), (860, 20834834), (974, 18396260), (1720, 10417417), (1948, 9198130), (2435, 7358504), (3896, 4599065), (4870, 3679252), (9740, 1839626), (19480, 919813), (20941, 855640), (21391, 837640), (41882, 427820), (42782, 418820), (83764, 213910), (85564, 209410), (104705, 171128), (106955, 167528)]