8220520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 24572160

約数和(自身を除く): 16351640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 157, 170, 187, 220, 238, 280, 308, 314, 340, 374, 385, 440, 476, 595, 616, 628, 680, 748, 770, 785, 935, 952, 1099, 1190, 1256, 1309, 1496, 1540, 1570, 1727, 1870, 2198, 2380, 2618, 2669, 3080, 3140, 3454, 3740, 4396, 4760, 5236, 5338, 5495, 6280, 6545, 6908, 7480, 8635, 8792, 10472, 10676, 10990, 12089, 13090, 13345, 13816, 17270, 18683, 21352, 21980, 24178, 26180, 26690, 29359, 34540, 37366, 43960, 48356, 52360, 53380, 58718, 60445, 69080, 74732, 93415, 96712, 106760, 117436, 120890, 146795, 149464, 186830, 205513, 234872, 241780, 293590, 373660, 411026, 483560, 587180, 747320, 822052, 1027565, 1174360, 1644104, 2055130, 4110260, 8220520]

約数ペア:

[(1, 8220520), (2, 4110260), (4, 2055130), (5, 1644104), (7, 1174360), (8, 1027565), (10, 822052), (11, 747320), (14, 587180), (17, 483560), (20, 411026), (22, 373660), (28, 293590), (34, 241780), (35, 234872), (40, 205513), (44, 186830), (55, 149464), (56, 146795), (68, 120890), (70, 117436), (77, 106760), (85, 96712), (88, 93415), (110, 74732), (119, 69080), (136, 60445), (140, 58718), (154, 53380), (157, 52360), (170, 48356), (187, 43960), (220, 37366), (238, 34540), (280, 29359), (308, 26690), (314, 26180), (340, 24178), (374, 21980), (385, 21352), (440, 18683), (476, 17270), (595, 13816), (616, 13345), (628, 13090), (680, 12089), (748, 10990), (770, 10676), (785, 10472), (935, 8792), (952, 8635), (1099, 7480), (1190, 6908), (1256, 6545), (1309, 6280), (1496, 5495), (1540, 5338), (1570, 5236), (1727, 4760), (1870, 4396), (2198, 3740), (2380, 3454), (2618, 3140), (2669, 3080)]