19979405.000000000

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 621129600

約数和(自身を除く): 410160168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 29, 36, 46, 58, 69, 72, 87, 92, 116, 138, 174, 184, 191, 207, 232, 261, 276, 348, 382, 414, 522, 529, 552, 573, 667, 696, 764, 828, 1044, 1058, 1146, 1334, 1528, 1587, 1656, 1719, 2001, 2088, 2116, 2292, 2668, 3174, 3438, 4002, 4232, 4393, 4584, 4761, 5336, 5539, 6003, 6348, 6876, 8004, 8786, 9522, 11078, 12006, 12696, 13179, 13752, 15341, 16008, 16617, 17572, 19044, 22156, 24012, 26358, 30682, 33234, 35144, 38088, 39537, 44312, 46023, 48024, 49851, 52716, 61364, 66468, 79074, 92046, 99702, 101039, 105432, 122728, 127397, 132936, 138069, 158148, 184092, 199404, 202078, 254794, 276138, 303117, 316296, 368184, 382191, 398808, 404156, 509588, 552276, 606234, 764382, 808312, 909351, 1019176, 1104552, 1146573, 1212468, 1528764, 1818702, 2293146, 2424936, 2930131, 3057528, 3637404, 4586292, 5860262, 7274808, 8790393, 9172584, 11720524, 17580786, 23441048, 26371179, 35161572, 52742358, 70323144, 105484716, 210969432]

約数ペア:

[(1, 210969432), (2, 105484716), (3, 70323144), (4, 52742358), (6, 35161572), (8, 26371179), (9, 23441048), (12, 17580786), (18, 11720524), (23, 9172584), (24, 8790393), (29, 7274808), (36, 5860262), (46, 4586292), (58, 3637404), (69, 3057528), (72, 2930131), (87, 2424936), (92, 2293146), (116, 1818702), (138, 1528764), (174, 1212468), (184, 1146573), (191, 1104552), (207, 1019176), (232, 909351), (261, 808312), (276, 764382), (348, 606234), (382, 552276), (414, 509588), (522, 404156), (529, 398808), (552, 382191), (573, 368184), (667, 316296), (696, 303117), (764, 276138), (828, 254794), (1044, 202078), (1058, 199404), (1146, 184092), (1334, 158148), (1528, 138069), (1587, 132936), (1656, 127397), (1719, 122728), (2001, 105432), (2088, 101039), (2116, 99702), (2292, 92046), (2668, 79074), (3174, 66468), (3438, 61364), (4002, 52716), (4232, 49851), (4393, 48024), (4584, 46023), (4761, 44312), (5336, 39537), (5539, 38088), (6003, 35144), (6348, 33234), (6876, 30682), (8004, 26358), (8786, 24012), (9522, 22156), (11078, 19044), (12006, 17572), (12696, 16617), (13179, 16008), (13752, 15341)]