1991430

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 6177600

約数和(自身を除く): 4186170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 29, 30, 35, 42, 45, 58, 63, 70, 87, 90, 105, 109, 126, 145, 174, 203, 210, 218, 261, 290, 315, 327, 406, 435, 522, 545, 609, 630, 654, 763, 870, 981, 1015, 1090, 1218, 1305, 1526, 1635, 1827, 1962, 2030, 2289, 2610, 3045, 3161, 3270, 3654, 3815, 4578, 4905, 6090, 6322, 6867, 7630, 9135, 9483, 9810, 11445, 13734, 15805, 18270, 18966, 22127, 22890, 28449, 31610, 34335, 44254, 47415, 56898, 66381, 68670, 94830, 110635, 132762, 142245, 199143, 221270, 284490, 331905, 398286, 663810, 995715, 1991430]

約数ペア:

[(1, 1991430), (2, 995715), (3, 663810), (5, 398286), (6, 331905), (7, 284490), (9, 221270), (10, 199143), (14, 142245), (15, 132762), (18, 110635), (21, 94830), (29, 68670), (30, 66381), (35, 56898), (42, 47415), (45, 44254), (58, 34335), (63, 31610), (70, 28449), (87, 22890), (90, 22127), (105, 18966), (109, 18270), (126, 15805), (145, 13734), (174, 11445), (203, 9810), (210, 9483), (218, 9135), (261, 7630), (290, 6867), (315, 6322), (327, 6090), (406, 4905), (435, 4578), (522, 3815), (545, 3654), (609, 3270), (630, 3161), (654, 3045), (763, 2610), (870, 2289), (981, 2030), (1015, 1962), (1090, 1827), (1218, 1635), (1305, 1526)]