18974480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1093}}^1$

素因数の和:1144

約数の個数: 80

約数和(自身を含む): 52091904

約数和(自身を除く): 33117424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1093, 1240, 1736, 2170, 2186, 2480, 3472, 4340, 4372, 5465, 7651, 8680, 8744, 10930, 15302, 17360, 17488, 21860, 30604, 33883, 38255, 43720, 61208, 67766, 76510, 87440, 122416, 135532, 153020, 169415, 237181, 271064, 306040, 338830, 474362, 542128, 612080, 677660, 948724, 1185905, 1355320, 1897448, 2371810, 2710640, 3794896, 4743620, 9487240, 18974480]

約数ペア:

[(1, 18974480), (2, 9487240), (4, 4743620), (5, 3794896), (7, 2710640), (8, 2371810), (10, 1897448), (14, 1355320), (16, 1185905), (20, 948724), (28, 677660), (31, 612080), (35, 542128), (40, 474362), (56, 338830), (62, 306040), (70, 271064), (80, 237181), (112, 169415), (124, 153020), (140, 135532), (155, 122416), (217, 87440), (248, 76510), (280, 67766), (310, 61208), (434, 43720), (496, 38255), (560, 33883), (620, 30604), (868, 21860), (1085, 17488), (1093, 17360), (1240, 15302), (1736, 10930), (2170, 8744), (2186, 8680), (2480, 7651), (3472, 5465), (4340, 4372)]