127248640

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 308500920

約数和(自身を除く): 181252280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 712, 890, 1117, 1280, 1424, 1780, 2234, 2848, 3560, 4468, 5585, 5696, 7120, 8936, 11170, 11392, 14240, 17872, 22340, 22784, 28480, 35744, 44680, 56960, 71488, 89360, 99413, 113920, 142976, 178720, 198826, 285952, 357440, 397652, 497065, 714880, 795304, 994130, 1429760, 1590608, 1988260, 3181216, 3976520, 6362432, 7953040, 12724864, 15906080, 25449728, 31812160, 63624320, 127248640]

約数ペア:

[(1, 127248640), (2, 63624320), (4, 31812160), (5, 25449728), (8, 15906080), (10, 12724864), (16, 7953040), (20, 6362432), (32, 3976520), (40, 3181216), (64, 1988260), (80, 1590608), (89, 1429760), (128, 994130), (160, 795304), (178, 714880), (256, 497065), (320, 397652), (356, 357440), (445, 285952), (640, 198826), (712, 178720), (890, 142976), (1117, 113920), (1280, 99413), (1424, 89360), (1780, 71488), (2234, 56960), (2848, 44680), (3560, 35744), (4468, 28480), (5585, 22784), (5696, 22340), (7120, 17872), (8936, 14240), (11170, 11392)]