20056890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:807

約数の個数: 64

約数和(自身を含む): 55468800

約数和(自身を除く): 35411910

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 149, 210, 298, 447, 641, 745, 894, 1043, 1282, 1490, 1923, 2086, 2235, 3129, 3205, 3846, 4470, 4487, 5215, 6258, 6410, 8974, 9615, 10430, 13461, 15645, 19230, 22435, 26922, 31290, 44870, 67305, 95509, 134610, 191018, 286527, 477545, 573054, 668563, 955090, 1337126, 1432635, 2005689, 2865270, 3342815, 4011378, 6685630, 10028445, 20056890]

約数ペア:

[(1, 20056890), (2, 10028445), (3, 6685630), (5, 4011378), (6, 3342815), (7, 2865270), (10, 2005689), (14, 1432635), (15, 1337126), (21, 955090), (30, 668563), (35, 573054), (42, 477545), (70, 286527), (105, 191018), (149, 134610), (210, 95509), (298, 67305), (447, 44870), (641, 31290), (745, 26922), (894, 22435), (1043, 19230), (1282, 15645), (1490, 13461), (1923, 10430), (2086, 9615), (2235, 8974), (3129, 6410), (3205, 6258), (3846, 5215), (4470, 4487)]