18159400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 52479900

約数和(自身を除く): 34320500

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 68, 70, 85, 98, 100, 109, 119, 136, 140, 170, 175, 196, 200, 218, 238, 245, 280, 340, 350, 392, 425, 436, 476, 490, 545, 595, 680, 700, 763, 833, 850, 872, 952, 980, 1090, 1190, 1225, 1400, 1526, 1666, 1700, 1853, 1960, 2180, 2380, 2450, 2725, 2975, 3052, 3332, 3400, 3706, 3815, 4165, 4360, 4760, 4900, 5341, 5450, 5950, 6104, 6664, 7412, 7630, 8330, 9265, 9800, 10682, 10900, 11900, 12971, 14824, 15260, 16660, 18530, 19075, 20825, 21364, 21800, 23800, 25942, 26705, 30520, 33320, 37060, 38150, 41650, 42728, 46325, 51884, 53410, 64855, 74120, 76300, 83300, 90797, 92650, 103768, 106820, 129710, 133525, 152600, 166600, 181594, 185300, 213640, 259420, 267050, 324275, 363188, 370600, 453985, 518840, 534100, 648550, 726376, 907970, 1068200, 1297100, 1815940, 2269925, 2594200, 3631880, 4539850, 9079700, 18159400]

約数ペア:

[(1, 18159400), (2, 9079700), (4, 4539850), (5, 3631880), (7, 2594200), (8, 2269925), (10, 1815940), (14, 1297100), (17, 1068200), (20, 907970), (25, 726376), (28, 648550), (34, 534100), (35, 518840), (40, 453985), (49, 370600), (50, 363188), (56, 324275), (68, 267050), (70, 259420), (85, 213640), (98, 185300), (100, 181594), (109, 166600), (119, 152600), (136, 133525), (140, 129710), (170, 106820), (175, 103768), (196, 92650), (200, 90797), (218, 83300), (238, 76300), (245, 74120), (280, 64855), (340, 53410), (350, 51884), (392, 46325), (425, 42728), (436, 41650), (476, 38150), (490, 37060), (545, 33320), (595, 30520), (680, 26705), (700, 25942), (763, 23800), (833, 21800), (850, 21364), (872, 20825), (952, 19075), (980, 18530), (1090, 16660), (1190, 15260), (1225, 14824), (1400, 12971), (1526, 11900), (1666, 10900), (1700, 10682), (1853, 9800), (1960, 9265), (2180, 8330), (2380, 7630), (2450, 7412), (2725, 6664), (2975, 6104), (3052, 5950), (3332, 5450), (3400, 5341), (3706, 4900), (3815, 4760), (4165, 4360)]