64820480

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 157285800

約数和(自身を除く): 92465320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 569, 640, 712, 890, 1138, 1280, 1424, 1780, 2276, 2845, 2848, 3560, 4552, 5690, 5696, 7120, 9104, 11380, 11392, 14240, 18208, 22760, 22784, 28480, 36416, 45520, 50641, 56960, 72832, 91040, 101282, 113920, 145664, 182080, 202564, 253205, 364160, 405128, 506410, 728320, 810256, 1012820, 1620512, 2025640, 3241024, 4051280, 6482048, 8102560, 12964096, 16205120, 32410240, 64820480]

約数ペア:

[(1, 64820480), (2, 32410240), (4, 16205120), (5, 12964096), (8, 8102560), (10, 6482048), (16, 4051280), (20, 3241024), (32, 2025640), (40, 1620512), (64, 1012820), (80, 810256), (89, 728320), (128, 506410), (160, 405128), (178, 364160), (256, 253205), (320, 202564), (356, 182080), (445, 145664), (569, 113920), (640, 101282), (712, 91040), (890, 72832), (1138, 56960), (1280, 50641), (1424, 45520), (1780, 36416), (2276, 28480), (2845, 22784), (2848, 22760), (3560, 18208), (4552, 14240), (5690, 11392), (5696, 11380), (7120, 9104)]