1781261944

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{21107}}^1$

素因数の和:21268

約数の個数: 64

約数和(自身を含む): 4194581760

約数和(自身を除く): 2413319816

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 137, 154, 274, 308, 548, 616, 959, 1096, 1507, 1918, 3014, 3836, 6028, 7672, 10549, 12056, 21098, 21107, 42196, 42214, 84392, 84428, 147749, 168856, 232177, 295498, 464354, 590996, 928708, 1181992, 1625239, 1857416, 2891659, 3250478, 5783318, 6500956, 11566636, 13001912, 20241613, 23133272, 31808249, 40483226, 63616498, 80966452, 127232996, 161932904, 222657743, 254465992, 445315486, 890630972, 1781261944]

約数ペア:

[(1, 1781261944), (2, 890630972), (4, 445315486), (7, 254465992), (8, 222657743), (11, 161932904), (14, 127232996), (22, 80966452), (28, 63616498), (44, 40483226), (56, 31808249), (77, 23133272), (88, 20241613), (137, 13001912), (154, 11566636), (274, 6500956), (308, 5783318), (548, 3250478), (616, 2891659), (959, 1857416), (1096, 1625239), (1507, 1181992), (1918, 928708), (3014, 590996), (3836, 464354), (6028, 295498), (7672, 232177), (10549, 168856), (12056, 147749), (21098, 84428), (21107, 84392), (42196, 42214)]