209016880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{311}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 505110528

約数和(自身を除く): 296093648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 271, 310, 311, 496, 542, 620, 622, 1084, 1240, 1244, 1355, 1555, 2168, 2480, 2488, 2710, 3110, 4336, 4976, 5420, 6220, 8401, 9641, 10840, 12440, 16802, 19282, 21680, 24880, 33604, 38564, 42005, 48205, 67208, 77128, 84010, 84281, 96410, 134416, 154256, 168020, 168562, 192820, 336040, 337124, 385640, 421405, 672080, 674248, 771280, 842810, 1348496, 1685620, 2612711, 3371240, 5225422, 6742480, 10450844, 13063555, 20901688, 26127110, 41803376, 52254220, 104508440, 209016880]

約数ペア:

[(1, 209016880), (2, 104508440), (4, 52254220), (5, 41803376), (8, 26127110), (10, 20901688), (16, 13063555), (20, 10450844), (31, 6742480), (40, 5225422), (62, 3371240), (80, 2612711), (124, 1685620), (155, 1348496), (248, 842810), (271, 771280), (310, 674248), (311, 672080), (496, 421405), (542, 385640), (620, 337124), (622, 336040), (1084, 192820), (1240, 168562), (1244, 168020), (1355, 154256), (1555, 134416), (2168, 96410), (2480, 84281), (2488, 84010), (2710, 77128), (3110, 67208), (4336, 48205), (4976, 42005), (5420, 38564), (6220, 33604), (8401, 24880), (9641, 21680), (10840, 19282), (12440, 16802)]