638962040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{2333}}^1$

素因数の和:2552

約数の個数: 64

約数和(自身を含む): 1482183360

約数和(自身を除く): 843221320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 167, 205, 328, 334, 410, 668, 820, 835, 1336, 1640, 1670, 2333, 3340, 4666, 6680, 6847, 9332, 11665, 13694, 18664, 23330, 27388, 34235, 46660, 54776, 68470, 93320, 95653, 136940, 191306, 273880, 382612, 389611, 478265, 765224, 779222, 956530, 1558444, 1913060, 1948055, 3116888, 3826120, 3896110, 7792220, 15584440, 15974051, 31948102, 63896204, 79870255, 127792408, 159740510, 319481020, 638962040]

約数ペア:

[(1, 638962040), (2, 319481020), (4, 159740510), (5, 127792408), (8, 79870255), (10, 63896204), (20, 31948102), (40, 15974051), (41, 15584440), (82, 7792220), (164, 3896110), (167, 3826120), (205, 3116888), (328, 1948055), (334, 1913060), (410, 1558444), (668, 956530), (820, 779222), (835, 765224), (1336, 478265), (1640, 389611), (1670, 382612), (2333, 273880), (3340, 191306), (4666, 136940), (6680, 95653), (6847, 93320), (9332, 68470), (11665, 54776), (13694, 46660), (18664, 34235), (23330, 27388)]