278611216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 601211520

約数和(自身を除く): 322600304

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 73, 104, 118, 146, 208, 236, 292, 311, 472, 584, 622, 767, 944, 949, 1168, 1244, 1534, 1898, 2488, 3068, 3796, 4043, 4307, 4976, 6136, 7592, 8086, 8614, 12272, 15184, 16172, 17228, 18349, 22703, 32344, 34456, 36698, 45406, 55991, 64688, 68912, 73396, 90812, 111982, 146792, 181624, 223964, 238537, 293584, 295139, 363248, 447928, 477074, 590278, 895856, 954148, 1180556, 1339477, 1908296, 2361112, 2678954, 3816592, 4722224, 5357908, 10715816, 17413201, 21431632, 34826402, 69652804, 139305608, 278611216]

約数ペア:

[(1, 278611216), (2, 139305608), (4, 69652804), (8, 34826402), (13, 21431632), (16, 17413201), (26, 10715816), (52, 5357908), (59, 4722224), (73, 3816592), (104, 2678954), (118, 2361112), (146, 1908296), (208, 1339477), (236, 1180556), (292, 954148), (311, 895856), (472, 590278), (584, 477074), (622, 447928), (767, 363248), (944, 295139), (949, 293584), (1168, 238537), (1244, 223964), (1534, 181624), (1898, 146792), (2488, 111982), (3068, 90812), (3796, 73396), (4043, 68912), (4307, 64688), (4976, 55991), (6136, 45406), (7592, 36698), (8086, 34456), (8614, 32344), (12272, 22703), (15184, 18349), (16172, 17228)]