79888900

素因数分解:

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

素因数の和:8813

約数の個数: 72

約数和(自身を含む): 213389120

約数和(自身を除く): 133500220

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 8779, 9100, 17558, 35116, 43895, 61453, 87790, 114127, 122906, 175580, 219475, 228254, 245812, 307265, 438950, 456508, 570635, 614530, 798889, 877900, 1141270, 1229060, 1536325, 1597778, 2282540, 2853175, 3072650, 3195556, 3994445, 5706350, 6145300, 7988890, 11412700, 15977780, 19972225, 39944450, 79888900]

約数ペア:

[(1, 79888900), (2, 39944450), (4, 19972225), (5, 15977780), (7, 11412700), (10, 7988890), (13, 6145300), (14, 5706350), (20, 3994445), (25, 3195556), (26, 3072650), (28, 2853175), (35, 2282540), (50, 1597778), (52, 1536325), (65, 1229060), (70, 1141270), (91, 877900), (100, 798889), (130, 614530), (140, 570635), (175, 456508), (182, 438950), (260, 307265), (325, 245812), (350, 228254), (364, 219475), (455, 175580), (650, 122906), (700, 114127), (910, 87790), (1300, 61453), (1820, 43895), (2275, 35116), (4550, 17558), (8779, 9100)]