15977780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8779}}^1$

素因数の和:8808

約数の個数: 48

約数和(自身を含む): 41301120

約数和(自身を除く): 25323340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 8779, 17558, 35116, 43895, 61453, 87790, 114127, 122906, 175580, 228254, 245812, 307265, 456508, 570635, 614530, 798889, 1141270, 1229060, 1597778, 2282540, 3195556, 3994445, 7988890, 15977780]

約数ペア:

[(1, 15977780), (2, 7988890), (4, 3994445), (5, 3195556), (7, 2282540), (10, 1597778), (13, 1229060), (14, 1141270), (20, 798889), (26, 614530), (28, 570635), (35, 456508), (52, 307265), (65, 245812), (70, 228254), (91, 175580), (130, 122906), (140, 114127), (182, 87790), (260, 61453), (364, 43895), (455, 35116), (910, 17558), (1820, 8779)]