655165040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{1549}}^1$

素因数の和:1890

約数の個数: 80

約数和(自身を含む): 1619092800

約数和(自身を除く): 963927760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 311, 340, 622, 680, 1244, 1360, 1549, 1555, 2488, 3098, 3110, 4976, 5287, 6196, 6220, 7745, 10574, 12392, 12440, 15490, 21148, 24784, 24880, 26333, 26435, 30980, 42296, 52666, 52870, 61960, 84592, 105332, 105740, 123920, 131665, 210664, 211480, 263330, 421328, 422960, 481739, 526660, 963478, 1053320, 1926956, 2106640, 2408695, 3853912, 4817390, 7707824, 8189563, 9634780, 16379126, 19269560, 32758252, 38539120, 40947815, 65516504, 81895630, 131033008, 163791260, 327582520, 655165040]

約数ペア:

[(1, 655165040), (2, 327582520), (4, 163791260), (5, 131033008), (8, 81895630), (10, 65516504), (16, 40947815), (17, 38539120), (20, 32758252), (34, 19269560), (40, 16379126), (68, 9634780), (80, 8189563), (85, 7707824), (136, 4817390), (170, 3853912), (272, 2408695), (311, 2106640), (340, 1926956), (622, 1053320), (680, 963478), (1244, 526660), (1360, 481739), (1549, 422960), (1555, 421328), (2488, 263330), (3098, 211480), (3110, 210664), (4976, 131665), (5287, 123920), (6196, 105740), (6220, 105332), (7745, 84592), (10574, 61960), (12392, 52870), (12440, 52666), (15490, 42296), (21148, 30980), (24784, 26435), (24880, 26333)]