76800920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2663}}^1$

素因数の和:2784

約数の個数: 64

約数和(自身を含む): 199480320

約数和(自身を除く): 122679400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2663, 2884, 3605, 4120, 5326, 5768, 7210, 10652, 13315, 14420, 18641, 21304, 26630, 28840, 37282, 53260, 74564, 93205, 106520, 149128, 186410, 274289, 372820, 548578, 745640, 1097156, 1371445, 1920023, 2194312, 2742890, 3840046, 5485780, 7680092, 9600115, 10971560, 15360184, 19200230, 38400460, 76800920]

約数ペア:

[(1, 76800920), (2, 38400460), (4, 19200230), (5, 15360184), (7, 10971560), (8, 9600115), (10, 7680092), (14, 5485780), (20, 3840046), (28, 2742890), (35, 2194312), (40, 1920023), (56, 1371445), (70, 1097156), (103, 745640), (140, 548578), (206, 372820), (280, 274289), (412, 186410), (515, 149128), (721, 106520), (824, 93205), (1030, 74564), (1442, 53260), (2060, 37282), (2663, 28840), (2884, 26630), (3605, 21304), (4120, 18641), (5326, 14420), (5768, 13315), (7210, 10652)]