220223320

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{11213}}^1$

素因数の和:11715

約数の個数: 32

約数和(自身を含む): 496555920

約数和(自身を除く): 276332600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 11213, 19640, 22426, 44852, 56065, 89704, 112130, 224260, 448520, 5505583, 11011166, 22022332, 27527915, 44044664, 55055830, 110111660, 220223320]

約数ペア:

[(1, 220223320), (2, 110111660), (4, 55055830), (5, 44044664), (8, 27527915), (10, 22022332), (20, 11011166), (40, 5505583), (491, 448520), (982, 224260), (1964, 112130), (2455, 89704), (3928, 56065), (4910, 44852), (9820, 22426), (11213, 19640)]