257978656

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 96

約数和(自身を含む): 582543360

約数和(自身を除く): 324564704

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 127, 152, 208, 247, 254, 257, 304, 416, 494, 508, 514, 608, 988, 1016, 1028, 1651, 1976, 2032, 2056, 2413, 3302, 3341, 3952, 4064, 4112, 4826, 4883, 6604, 6682, 7904, 8224, 9652, 9766, 13208, 13364, 19304, 19532, 26416, 26728, 31369, 32639, 38608, 39064, 52832, 53456, 62738, 63479, 65278, 77216, 78128, 106912, 125476, 126958, 130556, 156256, 250952, 253916, 261112, 424307, 501904, 507832, 522224, 620141, 848614, 1003808, 1015664, 1044448, 1240282, 1697228, 2031328, 2480564, 3394456, 4961128, 6788912, 8061833, 9922256, 13577824, 16123666, 19844512, 32247332, 64494664, 128989328, 257978656]

約数ペア:

[(1, 257978656), (2, 128989328), (4, 64494664), (8, 32247332), (13, 19844512), (16, 16123666), (19, 13577824), (26, 9922256), (32, 8061833), (38, 6788912), (52, 4961128), (76, 3394456), (104, 2480564), (127, 2031328), (152, 1697228), (208, 1240282), (247, 1044448), (254, 1015664), (257, 1003808), (304, 848614), (416, 620141), (494, 522224), (508, 507832), (514, 501904), (608, 424307), (988, 261112), (1016, 253916), (1028, 250952), (1651, 156256), (1976, 130556), (2032, 126958), (2056, 125476), (2413, 106912), (3302, 78128), (3341, 77216), (3952, 65278), (4064, 63479), (4112, 62738), (4826, 53456), (4883, 52832), (6604, 39064), (6682, 38608), (7904, 32639), (8224, 31369), (9652, 26728), (9766, 26416), (13208, 19532), (13364, 19304)]