10840400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 60

約数和(自身を含む): 26719644

約数和(自身を除く): 15879244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 661, 820, 1025, 1322, 1640, 2050, 2644, 3280, 3305, 4100, 5288, 6610, 8200, 10576, 13220, 16400, 16525, 26440, 27101, 33050, 52880, 54202, 66100, 108404, 132200, 135505, 216808, 264400, 271010, 433616, 542020, 677525, 1084040, 1355050, 2168080, 2710100, 5420200, 10840400]

約数ペア:

[(1, 10840400), (2, 5420200), (4, 2710100), (5, 2168080), (8, 1355050), (10, 1084040), (16, 677525), (20, 542020), (25, 433616), (40, 271010), (41, 264400), (50, 216808), (80, 135505), (82, 132200), (100, 108404), (164, 66100), (200, 54202), (205, 52880), (328, 33050), (400, 27101), (410, 26440), (656, 16525), (661, 16400), (820, 13220), (1025, 10576), (1322, 8200), (1640, 6610), (2050, 5288), (2644, 4100), (3280, 3305)]