218780408

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 545011200

約数和(自身を除く): 326230792

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 37, 44, 56, 58, 74, 77, 88, 116, 148, 154, 203, 232, 259, 296, 308, 319, 331, 406, 407, 518, 616, 638, 662, 812, 814, 1036, 1073, 1276, 1324, 1624, 1628, 2072, 2146, 2233, 2317, 2552, 2648, 2849, 3256, 3641, 4292, 4466, 4634, 5698, 7282, 7511, 8584, 8932, 9268, 9599, 11396, 11803, 12247, 14564, 15022, 17864, 18536, 19198, 22792, 23606, 24494, 25487, 29128, 30044, 38396, 47212, 48988, 50974, 60088, 67193, 76792, 82621, 85729, 94424, 97976, 101948, 105589, 134386, 134717, 165242, 171458, 203896, 211178, 268772, 269434, 330484, 342916, 355163, 422356, 537544, 538868, 660968, 685832, 710326, 739123, 844712, 943019, 1077736, 1420652, 1478246, 1886038, 2486141, 2841304, 2956492, 3772076, 3906793, 4972282, 5912984, 7544152, 7813586, 9944564, 15627172, 19889128, 27347551, 31254344, 54695102, 109390204, 218780408]

約数ペア:

[(1, 218780408), (2, 109390204), (4, 54695102), (7, 31254344), (8, 27347551), (11, 19889128), (14, 15627172), (22, 9944564), (28, 7813586), (29, 7544152), (37, 5912984), (44, 4972282), (56, 3906793), (58, 3772076), (74, 2956492), (77, 2841304), (88, 2486141), (116, 1886038), (148, 1478246), (154, 1420652), (203, 1077736), (232, 943019), (259, 844712), (296, 739123), (308, 710326), (319, 685832), (331, 660968), (406, 538868), (407, 537544), (518, 422356), (616, 355163), (638, 342916), (662, 330484), (812, 269434), (814, 268772), (1036, 211178), (1073, 203896), (1276, 171458), (1324, 165242), (1624, 134717), (1628, 134386), (2072, 105589), (2146, 101948), (2233, 97976), (2317, 94424), (2552, 85729), (2648, 82621), (2849, 76792), (3256, 67193), (3641, 60088), (4292, 50974), (4466, 48988), (4634, 47212), (5698, 38396), (7282, 30044), (7511, 29128), (8584, 25487), (8932, 24494), (9268, 23606), (9599, 22792), (11396, 19198), (11803, 18536), (12247, 17864), (14564, 15022)]