220488520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18313}}^1$

素因数の和:18374

約数の個数: 64

約数和(自身を含む): 580187520

約数和(自身を除く): 359699000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 18313, 36626, 73252, 91565, 128191, 146504, 183130, 256382, 366260, 512764, 640955, 732520, 787459, 1025528, 1281910, 1574918, 2563820, 3149836, 3937295, 5127640, 5512213, 6299672, 7874590, 11024426, 15749180, 22048852, 27561065, 31498360, 44097704, 55122130, 110244260, 220488520]

約数ペア:

[(1, 220488520), (2, 110244260), (4, 55122130), (5, 44097704), (7, 31498360), (8, 27561065), (10, 22048852), (14, 15749180), (20, 11024426), (28, 7874590), (35, 6299672), (40, 5512213), (43, 5127640), (56, 3937295), (70, 3149836), (86, 2563820), (140, 1574918), (172, 1281910), (215, 1025528), (280, 787459), (301, 732520), (344, 640955), (430, 512764), (602, 366260), (860, 256382), (1204, 183130), (1505, 146504), (1720, 128191), (2408, 91565), (3010, 73252), (6020, 36626), (12040, 18313)]