281379040

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:404

約数の個数: 96

約数和(自身を含む): 682577280

約数和(自身を除く): 401198240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 113, 158, 160, 197, 226, 316, 394, 395, 452, 565, 632, 788, 790, 904, 985, 1130, 1264, 1576, 1580, 1808, 1970, 2260, 2528, 3152, 3160, 3616, 3940, 4520, 6304, 6320, 7880, 8927, 9040, 12640, 15563, 15760, 17854, 18080, 22261, 31126, 31520, 35708, 44522, 44635, 62252, 71416, 77815, 89044, 89270, 111305, 124504, 142832, 155630, 178088, 178540, 222610, 249008, 285664, 311260, 356176, 357080, 445220, 498016, 622520, 712352, 714160, 890440, 1245040, 1428320, 1758619, 1780880, 2490080, 3517238, 3561760, 7034476, 8793095, 14068952, 17586190, 28137904, 35172380, 56275808, 70344760, 140689520, 281379040]

約数ペア:

[(1, 281379040), (2, 140689520), (4, 70344760), (5, 56275808), (8, 35172380), (10, 28137904), (16, 17586190), (20, 14068952), (32, 8793095), (40, 7034476), (79, 3561760), (80, 3517238), (113, 2490080), (158, 1780880), (160, 1758619), (197, 1428320), (226, 1245040), (316, 890440), (394, 714160), (395, 712352), (452, 622520), (565, 498016), (632, 445220), (788, 357080), (790, 356176), (904, 311260), (985, 285664), (1130, 249008), (1264, 222610), (1576, 178540), (1580, 178088), (1808, 155630), (1970, 142832), (2260, 124504), (2528, 111305), (3152, 89270), (3160, 89044), (3616, 77815), (3940, 71416), (4520, 62252), (6304, 44635), (6320, 44522), (7880, 35708), (8927, 31520), (9040, 31126), (12640, 22261), (15563, 18080), (15760, 17854)]