18998700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 64162560

約数和(自身を除く): 45163860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 83, 84, 100, 105, 109, 140, 150, 166, 175, 210, 218, 249, 300, 327, 332, 350, 415, 420, 436, 498, 525, 545, 581, 654, 700, 763, 830, 996, 1050, 1090, 1162, 1245, 1308, 1526, 1635, 1660, 1743, 2075, 2100, 2180, 2289, 2324, 2490, 2725, 2905, 3052, 3270, 3486, 3815, 4150, 4578, 4980, 5450, 5810, 6225, 6540, 6972, 7630, 8175, 8300, 8715, 9047, 9156, 10900, 11445, 11620, 12450, 14525, 15260, 16350, 17430, 18094, 19075, 22890, 24900, 27141, 29050, 32700, 34860, 36188, 38150, 43575, 45235, 45780, 54282, 57225, 58100, 63329, 76300, 87150, 90470, 108564, 114450, 126658, 135705, 174300, 180940, 189987, 226175, 228900, 253316, 271410, 316645, 379974, 452350, 542820, 633290, 678525, 759948, 904700, 949935, 1266580, 1357050, 1583225, 1899870, 2714100, 3166450, 3799740, 4749675, 6332900, 9499350, 18998700]

約数ペア:

[(1, 18998700), (2, 9499350), (3, 6332900), (4, 4749675), (5, 3799740), (6, 3166450), (7, 2714100), (10, 1899870), (12, 1583225), (14, 1357050), (15, 1266580), (20, 949935), (21, 904700), (25, 759948), (28, 678525), (30, 633290), (35, 542820), (42, 452350), (50, 379974), (60, 316645), (70, 271410), (75, 253316), (83, 228900), (84, 226175), (100, 189987), (105, 180940), (109, 174300), (140, 135705), (150, 126658), (166, 114450), (175, 108564), (210, 90470), (218, 87150), (249, 76300), (300, 63329), (327, 58100), (332, 57225), (350, 54282), (415, 45780), (420, 45235), (436, 43575), (498, 38150), (525, 36188), (545, 34860), (581, 32700), (654, 29050), (700, 27141), (763, 24900), (830, 22890), (996, 19075), (1050, 18094), (1090, 17430), (1162, 16350), (1245, 15260), (1308, 14525), (1526, 12450), (1635, 11620), (1660, 11445), (1743, 10900), (2075, 9156), (2100, 9047), (2180, 8715), (2289, 8300), (2324, 8175), (2490, 7630), (2725, 6972), (2905, 6540), (3052, 6225), (3270, 5810), (3486, 5450), (3815, 4980), (4150, 4578)]