291256240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19469}}^1$

素因数の和:19510

約数の個数: 80

約数和(自身を含む): 782226720

約数和(自身を除く): 490970480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 14960, 19469, 38938, 77876, 97345, 155752, 194690, 214159, 311504, 330973, 389380, 428318, 661946, 778760, 856636, 1070795, 1323892, 1557520, 1654865, 1713272, 2141590, 2647784, 3309730, 3426544, 3640703, 4283180, 5295568, 6619460, 7281406, 8566360, 13238920, 14562812, 17132720, 18203515, 26477840, 29125624, 36407030, 58251248, 72814060, 145628120, 291256240]

約数ペア:

[(1, 291256240), (2, 145628120), (4, 72814060), (5, 58251248), (8, 36407030), (10, 29125624), (11, 26477840), (16, 18203515), (17, 17132720), (20, 14562812), (22, 13238920), (34, 8566360), (40, 7281406), (44, 6619460), (55, 5295568), (68, 4283180), (80, 3640703), (85, 3426544), (88, 3309730), (110, 2647784), (136, 2141590), (170, 1713272), (176, 1654865), (187, 1557520), (220, 1323892), (272, 1070795), (340, 856636), (374, 778760), (440, 661946), (680, 428318), (748, 389380), (880, 330973), (935, 311504), (1360, 214159), (1496, 194690), (1870, 155752), (2992, 97345), (3740, 77876), (7480, 38938), (14960, 19469)]