19446980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8171}}^1$

素因数の和:8204

約数の個数: 48

約数和(自身を含む): 49424256

約数和(自身を除く): 29977276

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8171, 16342, 32684, 40855, 57197, 81710, 114394, 138907, 163420, 228788, 277814, 285985, 555628, 571970, 694535, 972349, 1143940, 1389070, 1944698, 2778140, 3889396, 4861745, 9723490, 19446980]

約数ペア:

[(1, 19446980), (2, 9723490), (4, 4861745), (5, 3889396), (7, 2778140), (10, 1944698), (14, 1389070), (17, 1143940), (20, 972349), (28, 694535), (34, 571970), (35, 555628), (68, 285985), (70, 277814), (85, 228788), (119, 163420), (140, 138907), (170, 114394), (238, 81710), (340, 57197), (476, 40855), (595, 32684), (1190, 16342), (2380, 8171)]