80521540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 193052160

約数和(自身を除く): 112530620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 79, 82, 110, 113, 158, 164, 205, 220, 226, 316, 395, 410, 451, 452, 565, 790, 820, 869, 902, 1130, 1243, 1580, 1738, 1804, 2255, 2260, 2486, 3239, 3476, 4345, 4510, 4633, 4972, 6215, 6478, 8690, 8927, 9020, 9266, 12430, 12956, 16195, 17380, 17854, 18532, 23165, 24860, 32390, 35629, 35708, 44635, 46330, 50963, 64780, 71258, 89270, 92660, 98197, 101926, 142516, 178145, 178540, 196394, 203852, 254815, 356290, 366007, 392788, 490985, 509630, 712580, 732014, 981970, 1019260, 1464028, 1830035, 1963940, 3660070, 4026077, 7320140, 8052154, 16104308, 20130385, 40260770, 80521540]

約数ペア:

[(1, 80521540), (2, 40260770), (4, 20130385), (5, 16104308), (10, 8052154), (11, 7320140), (20, 4026077), (22, 3660070), (41, 1963940), (44, 1830035), (55, 1464028), (79, 1019260), (82, 981970), (110, 732014), (113, 712580), (158, 509630), (164, 490985), (205, 392788), (220, 366007), (226, 356290), (316, 254815), (395, 203852), (410, 196394), (451, 178540), (452, 178145), (565, 142516), (790, 101926), (820, 98197), (869, 92660), (902, 89270), (1130, 71258), (1243, 64780), (1580, 50963), (1738, 46330), (1804, 44635), (2255, 35708), (2260, 35629), (2486, 32390), (3239, 24860), (3476, 23165), (4345, 18532), (4510, 17854), (4633, 17380), (4972, 16195), (6215, 12956), (6478, 12430), (8690, 9266), (8927, 9020)]