164004540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{390487}}^1$

素因数の和:390506

約数の個数: 48

約数和(自身を含む): 524815872

約数和(自身を除く): 360811332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 390487, 780974, 1171461, 1561948, 1952435, 2342922, 2733409, 3904870, 4685844, 5466818, 5857305, 7809740, 8200227, 10933636, 11714610, 13667045, 16400454, 23429220, 27334090, 32800908, 41001135, 54668180, 82002270, 164004540]

約数ペア:

[(1, 164004540), (2, 82002270), (3, 54668180), (4, 41001135), (5, 32800908), (6, 27334090), (7, 23429220), (10, 16400454), (12, 13667045), (14, 11714610), (15, 10933636), (20, 8200227), (21, 7809740), (28, 5857305), (30, 5466818), (35, 4685844), (42, 3904870), (60, 2733409), (70, 2342922), (84, 1952435), (105, 1561948), (140, 1171461), (210, 780974), (420, 390487)]