128401448

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 281698560

約数和(自身を除く): 153297112

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 113, 197, 206, 226, 394, 412, 452, 721, 788, 791, 824, 904, 1379, 1442, 1576, 1582, 2758, 2884, 3164, 5516, 5768, 6328, 11032, 11639, 20291, 22261, 23278, 40582, 44522, 46556, 81164, 81473, 89044, 93112, 142037, 155827, 162328, 162946, 178088, 284074, 311654, 325892, 568148, 623308, 651784, 1136296, 1246616, 2292883, 4585766, 9171532, 16050181, 18343064, 32100362, 64200724, 128401448]

約数ペア:

[(1, 128401448), (2, 64200724), (4, 32100362), (7, 18343064), (8, 16050181), (14, 9171532), (28, 4585766), (56, 2292883), (103, 1246616), (113, 1136296), (197, 651784), (206, 623308), (226, 568148), (394, 325892), (412, 311654), (452, 284074), (721, 178088), (788, 162946), (791, 162328), (824, 155827), (904, 142037), (1379, 93112), (1442, 89044), (1576, 81473), (1582, 81164), (2758, 46556), (2884, 44522), (3164, 40582), (5516, 23278), (5768, 22261), (6328, 20291), (11032, 11639)]