31678220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{641}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 76362048

約数和(自身を除く): 44683828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 641, 706, 1282, 1412, 1765, 2471, 2564, 3205, 3530, 4487, 4942, 6410, 7060, 8974, 9884, 12355, 12820, 17948, 22435, 24710, 44870, 49420, 89740, 226273, 452546, 905092, 1131365, 1583911, 2262730, 3167822, 4525460, 6335644, 7919555, 15839110, 31678220]

約数ペア:

[(1, 31678220), (2, 15839110), (4, 7919555), (5, 6335644), (7, 4525460), (10, 3167822), (14, 2262730), (20, 1583911), (28, 1131365), (35, 905092), (70, 452546), (140, 226273), (353, 89740), (641, 49420), (706, 44870), (1282, 24710), (1412, 22435), (1765, 17948), (2471, 12820), (2564, 12355), (3205, 9884), (3530, 8974), (4487, 7060), (4942, 6410)]