217872688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 477781920

約数和(自身を除く): 259909232

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 109, 164, 176, 218, 277, 328, 436, 451, 554, 656, 872, 902, 1108, 1199, 1744, 1804, 2216, 2398, 3047, 3608, 4432, 4469, 4796, 6094, 7216, 8938, 9592, 11357, 12188, 17876, 19184, 22714, 24376, 30193, 35752, 45428, 48752, 49159, 60386, 71504, 90856, 98318, 120772, 124927, 181712, 196636, 241544, 249854, 332123, 393272, 483088, 499708, 664246, 786544, 999416, 1237913, 1328492, 1998832, 2475826, 2656984, 4951652, 5313968, 9903304, 13617043, 19806608, 27234086, 54468172, 108936344, 217872688]

約数ペア:

[(1, 217872688), (2, 108936344), (4, 54468172), (8, 27234086), (11, 19806608), (16, 13617043), (22, 9903304), (41, 5313968), (44, 4951652), (82, 2656984), (88, 2475826), (109, 1998832), (164, 1328492), (176, 1237913), (218, 999416), (277, 786544), (328, 664246), (436, 499708), (451, 483088), (554, 393272), (656, 332123), (872, 249854), (902, 241544), (1108, 196636), (1199, 181712), (1744, 124927), (1804, 120772), (2216, 98318), (2398, 90856), (3047, 71504), (3608, 60386), (4432, 49159), (4469, 48752), (4796, 45428), (6094, 35752), (7216, 30193), (8938, 24376), (9592, 22714), (11357, 19184), (12188, 17876)]