21668640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6449}}^1$

素因数の和:6474

約数の個数: 96

約数和(自身を含む): 78019200

約数和(自身を除く): 56350560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6449, 12898, 19347, 25796, 32245, 38694, 45143, 51592, 64490, 77388, 90286, 96735, 103184, 128980, 135429, 154776, 180572, 193470, 206368, 225715, 257960, 270858, 309552, 361144, 386940, 451430, 515920, 541716, 619104, 677145, 722288, 773880, 902860, 1031840, 1083432, 1354290, 1444576, 1547760, 1805720, 2166864, 2708580, 3095520, 3611440, 4333728, 5417160, 7222880, 10834320, 21668640]

約数ペア:

[(1, 21668640), (2, 10834320), (3, 7222880), (4, 5417160), (5, 4333728), (6, 3611440), (7, 3095520), (8, 2708580), (10, 2166864), (12, 1805720), (14, 1547760), (15, 1444576), (16, 1354290), (20, 1083432), (21, 1031840), (24, 902860), (28, 773880), (30, 722288), (32, 677145), (35, 619104), (40, 541716), (42, 515920), (48, 451430), (56, 386940), (60, 361144), (70, 309552), (80, 270858), (84, 257960), (96, 225715), (105, 206368), (112, 193470), (120, 180572), (140, 154776), (160, 135429), (168, 128980), (210, 103184), (224, 96735), (240, 90286), (280, 77388), (336, 64490), (420, 51592), (480, 45143), (560, 38694), (672, 32245), (840, 25796), (1120, 19347), (1680, 12898), (3360, 6449)]