18475940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1109}}^1$

素因数の和:1149

約数の個数: 72

約数和(自身を含む): 47832120

約数和(自身を除く): 29356180

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1109, 1190, 1666, 2218, 2380, 3332, 4165, 4436, 5545, 7763, 8330, 11090, 15526, 16660, 18853, 22180, 31052, 37706, 38815, 54341, 75412, 77630, 94265, 108682, 131971, 155260, 188530, 217364, 263942, 271705, 377060, 527884, 543410, 659855, 923797, 1086820, 1319710, 1847594, 2639420, 3695188, 4618985, 9237970, 18475940]

約数ペア:

[(1, 18475940), (2, 9237970), (4, 4618985), (5, 3695188), (7, 2639420), (10, 1847594), (14, 1319710), (17, 1086820), (20, 923797), (28, 659855), (34, 543410), (35, 527884), (49, 377060), (68, 271705), (70, 263942), (85, 217364), (98, 188530), (119, 155260), (140, 131971), (170, 108682), (196, 94265), (238, 77630), (245, 75412), (340, 54341), (476, 38815), (490, 37706), (595, 31052), (833, 22180), (980, 18853), (1109, 16660), (1190, 15526), (1666, 11090), (2218, 8330), (2380, 7763), (3332, 5545), (4165, 4436)]