30975980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2281}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 75141696

約数和(自身を除く): 44165716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2281, 2716, 3395, 4562, 6790, 9124, 11405, 13580, 15967, 22810, 31934, 45620, 63868, 79835, 159670, 221257, 319340, 442514, 885028, 1106285, 1548799, 2212570, 3097598, 4425140, 6195196, 7743995, 15487990, 30975980]

約数ペア:

[(1, 30975980), (2, 15487990), (4, 7743995), (5, 6195196), (7, 4425140), (10, 3097598), (14, 2212570), (20, 1548799), (28, 1106285), (35, 885028), (70, 442514), (97, 319340), (140, 221257), (194, 159670), (388, 79835), (485, 63868), (679, 45620), (970, 31934), (1358, 22810), (1940, 15967), (2281, 13580), (2716, 11405), (3395, 9124), (4562, 6790)]