21616100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 52475808

約数和(自身を除く): 30859708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 457, 473, 550, 860, 914, 946, 1075, 1100, 1828, 1892, 2150, 2285, 2365, 4300, 4570, 4730, 5027, 9140, 9460, 10054, 11425, 11825, 19651, 20108, 22850, 23650, 25135, 39302, 45700, 47300, 50270, 78604, 98255, 100540, 125675, 196510, 216161, 251350, 393020, 432322, 491275, 502700, 864644, 982550, 1080805, 1965100, 2161610, 4323220, 5404025, 10808050, 21616100]

約数ペア:

[(1, 21616100), (2, 10808050), (4, 5404025), (5, 4323220), (10, 2161610), (11, 1965100), (20, 1080805), (22, 982550), (25, 864644), (43, 502700), (44, 491275), (50, 432322), (55, 393020), (86, 251350), (100, 216161), (110, 196510), (172, 125675), (215, 100540), (220, 98255), (275, 78604), (430, 50270), (457, 47300), (473, 45700), (550, 39302), (860, 25135), (914, 23650), (946, 22850), (1075, 20108), (1100, 19651), (1828, 11825), (1892, 11425), (2150, 10054), (2285, 9460), (2365, 9140), (4300, 5027), (4570, 4730)]