31481388

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 83891808

約数和(自身を除く): 52410420

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 193, 197, 207, 276, 386, 394, 414, 579, 591, 772, 788, 828, 1158, 1182, 1737, 1773, 2316, 2364, 3474, 3546, 4439, 4531, 6948, 7092, 8878, 9062, 13317, 13593, 17756, 18124, 26634, 27186, 38021, 39951, 40779, 53268, 54372, 76042, 79902, 81558, 114063, 152084, 159804, 163116, 228126, 342189, 456252, 684378, 874483, 1368756, 1748966, 2623449, 3497932, 5246898, 7870347, 10493796, 15740694, 31481388]

約数ペア:

[(1, 31481388), (2, 15740694), (3, 10493796), (4, 7870347), (6, 5246898), (9, 3497932), (12, 2623449), (18, 1748966), (23, 1368756), (36, 874483), (46, 684378), (69, 456252), (92, 342189), (138, 228126), (193, 163116), (197, 159804), (207, 152084), (276, 114063), (386, 81558), (394, 79902), (414, 76042), (579, 54372), (591, 53268), (772, 40779), (788, 39951), (828, 38021), (1158, 27186), (1182, 26634), (1737, 18124), (1773, 17756), (2316, 13593), (2364, 13317), (3474, 9062), (3546, 8878), (4439, 7092), (4531, 6948)]