17917240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 45048960

約数和(自身を除く): 27131720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 947, 1720, 1892, 1894, 2365, 3784, 3788, 4730, 4735, 7576, 9460, 9470, 10417, 18920, 18940, 20834, 37880, 40721, 41668, 52085, 81442, 83336, 104170, 162884, 203605, 208340, 325768, 407210, 416680, 447931, 814420, 895862, 1628840, 1791724, 2239655, 3583448, 4479310, 8958620, 17917240]

約数ペア:

[(1, 17917240), (2, 8958620), (4, 4479310), (5, 3583448), (8, 2239655), (10, 1791724), (11, 1628840), (20, 895862), (22, 814420), (40, 447931), (43, 416680), (44, 407210), (55, 325768), (86, 208340), (88, 203605), (110, 162884), (172, 104170), (215, 83336), (220, 81442), (344, 52085), (430, 41668), (440, 40721), (473, 37880), (860, 20834), (946, 18940), (947, 18920), (1720, 10417), (1892, 9470), (1894, 9460), (2365, 7576), (3784, 4735), (3788, 4730)]