31381328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 80

約数和(自身を含む): 70114560

約数和(自身を除く): 38733232

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 61, 74, 79, 88, 122, 148, 158, 176, 244, 296, 316, 407, 488, 592, 632, 671, 814, 869, 976, 1264, 1342, 1628, 1738, 2257, 2684, 2923, 3256, 3476, 4514, 4819, 5368, 5846, 6512, 6952, 9028, 9638, 10736, 11692, 13904, 18056, 19276, 23384, 24827, 32153, 36112, 38552, 46768, 49654, 53009, 64306, 77104, 99308, 106018, 128612, 178303, 198616, 212036, 257224, 356606, 397232, 424072, 514448, 713212, 848144, 1426424, 1961333, 2852848, 3922666, 7845332, 15690664, 31381328]

約数ペア:

[(1, 31381328), (2, 15690664), (4, 7845332), (8, 3922666), (11, 2852848), (16, 1961333), (22, 1426424), (37, 848144), (44, 713212), (61, 514448), (74, 424072), (79, 397232), (88, 356606), (122, 257224), (148, 212036), (158, 198616), (176, 178303), (244, 128612), (296, 106018), (316, 99308), (407, 77104), (488, 64306), (592, 53009), (632, 49654), (671, 46768), (814, 38552), (869, 36112), (976, 32153), (1264, 24827), (1342, 23384), (1628, 19276), (1738, 18056), (2257, 13904), (2684, 11692), (2923, 10736), (3256, 9638), (3476, 9028), (4514, 6952), (4819, 6512), (5368, 5846)]