80268100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1697}}^1$

素因数の和:1765

約数の個数: 72

約数和(自身を含む): 194550048

約数和(自身を除く): 114281948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1697, 1892, 2150, 2365, 3394, 4300, 4730, 6788, 8485, 9460, 11825, 16970, 18667, 23650, 33940, 37334, 42425, 47300, 72971, 74668, 84850, 93335, 145942, 169700, 186670, 291884, 364855, 373340, 466675, 729710, 802681, 933350, 1459420, 1605362, 1824275, 1866700, 3210724, 3648550, 4013405, 7297100, 8026810, 16053620, 20067025, 40134050, 80268100]

約数ペア:

[(1, 80268100), (2, 40134050), (4, 20067025), (5, 16053620), (10, 8026810), (11, 7297100), (20, 4013405), (22, 3648550), (25, 3210724), (43, 1866700), (44, 1824275), (50, 1605362), (55, 1459420), (86, 933350), (100, 802681), (110, 729710), (172, 466675), (215, 373340), (220, 364855), (275, 291884), (430, 186670), (473, 169700), (550, 145942), (860, 93335), (946, 84850), (1075, 74668), (1100, 72971), (1697, 47300), (1892, 42425), (2150, 37334), (2365, 33940), (3394, 23650), (4300, 18667), (4730, 16970), (6788, 11825), (8485, 9460)]