78820280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:349

約数の個数: 128

約数和(自身を含む): 223879680

約数和(自身を除く): 145059400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 157, 163, 220, 280, 308, 314, 326, 385, 440, 616, 628, 652, 770, 785, 815, 1099, 1141, 1256, 1304, 1540, 1570, 1630, 1727, 1793, 2198, 2282, 3080, 3140, 3260, 3454, 3586, 4396, 4564, 5495, 5705, 6280, 6520, 6908, 7172, 8635, 8792, 8965, 9128, 10990, 11410, 12089, 12551, 13816, 14344, 17270, 17930, 21980, 22820, 24178, 25102, 25591, 34540, 35860, 43960, 45640, 48356, 50204, 51182, 60445, 62755, 69080, 71720, 96712, 100408, 102364, 120890, 125510, 127955, 179137, 204728, 241780, 251020, 255910, 281501, 358274, 483560, 502040, 511820, 563002, 716548, 895685, 1023640, 1126004, 1407505, 1433096, 1791370, 1970507, 2252008, 2815010, 3582740, 3941014, 5630020, 7165480, 7882028, 9852535, 11260040, 15764056, 19705070, 39410140, 78820280]

約数ペア:

[(1, 78820280), (2, 39410140), (4, 19705070), (5, 15764056), (7, 11260040), (8, 9852535), (10, 7882028), (11, 7165480), (14, 5630020), (20, 3941014), (22, 3582740), (28, 2815010), (35, 2252008), (40, 1970507), (44, 1791370), (55, 1433096), (56, 1407505), (70, 1126004), (77, 1023640), (88, 895685), (110, 716548), (140, 563002), (154, 511820), (157, 502040), (163, 483560), (220, 358274), (280, 281501), (308, 255910), (314, 251020), (326, 241780), (385, 204728), (440, 179137), (616, 127955), (628, 125510), (652, 120890), (770, 102364), (785, 100408), (815, 96712), (1099, 71720), (1141, 69080), (1256, 62755), (1304, 60445), (1540, 51182), (1570, 50204), (1630, 48356), (1727, 45640), (1793, 43960), (2198, 35860), (2282, 34540), (3080, 25591), (3140, 25102), (3260, 24178), (3454, 22820), (3586, 21980), (4396, 17930), (4564, 17270), (5495, 14344), (5705, 13816), (6280, 12551), (6520, 12089), (6908, 11410), (7172, 10990), (8635, 9128), (8792, 8965)]