257681736

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^3\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 160

約数和(自身を含む): 786185400

約数和(自身を除く): 528503664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 169, 181, 216, 234, 312, 324, 338, 351, 362, 468, 507, 543, 648, 676, 702, 724, 936, 1014, 1053, 1086, 1352, 1404, 1448, 1521, 1629, 2028, 2106, 2172, 2197, 2353, 2808, 3042, 3258, 4056, 4212, 4344, 4394, 4563, 4706, 4887, 6084, 6516, 6591, 7059, 8424, 8788, 9126, 9412, 9774, 12168, 13032, 13182, 13689, 14118, 14661, 17576, 18252, 18824, 19548, 19773, 21177, 26364, 27378, 28236, 29322, 30589, 36504, 39096, 39546, 42354, 52728, 54756, 56472, 58644, 59319, 61178, 63531, 79092, 84708, 91767, 109512, 117288, 118638, 122356, 127062, 158184, 169416, 177957, 183534, 190593, 237276, 244712, 254124, 275301, 355914, 367068, 381186, 397657, 474552, 508248, 550602, 711828, 734136, 762372, 795314, 825903, 1101204, 1192971, 1423656, 1524744, 1590628, 1651806, 2202408, 2385942, 2477709, 3181256, 3303612, 3578913, 4771884, 4955418, 6607224, 7157826, 9543768, 9910836, 10736739, 14315652, 19821672, 21473478, 28631304, 32210217, 42946956, 64420434, 85893912, 128840868, 257681736]

約数ペア:

[(1, 257681736), (2, 128840868), (3, 85893912), (4, 64420434), (6, 42946956), (8, 32210217), (9, 28631304), (12, 21473478), (13, 19821672), (18, 14315652), (24, 10736739), (26, 9910836), (27, 9543768), (36, 7157826), (39, 6607224), (52, 4955418), (54, 4771884), (72, 3578913), (78, 3303612), (81, 3181256), (104, 2477709), (108, 2385942), (117, 2202408), (156, 1651806), (162, 1590628), (169, 1524744), (181, 1423656), (216, 1192971), (234, 1101204), (312, 825903), (324, 795314), (338, 762372), (351, 734136), (362, 711828), (468, 550602), (507, 508248), (543, 474552), (648, 397657), (676, 381186), (702, 367068), (724, 355914), (936, 275301), (1014, 254124), (1053, 244712), (1086, 237276), (1352, 190593), (1404, 183534), (1448, 177957), (1521, 169416), (1629, 158184), (2028, 127062), (2106, 122356), (2172, 118638), (2197, 117288), (2353, 109512), (2808, 91767), (3042, 84708), (3258, 79092), (4056, 63531), (4212, 61178), (4344, 59319), (4394, 58644), (4563, 56472), (4706, 54756), (4887, 52728), (6084, 42354), (6516, 39546), (6591, 39096), (7059, 36504), (8424, 30589), (8788, 29322), (9126, 28236), (9412, 27378), (9774, 26364), (12168, 21177), (13032, 19773), (13182, 19548), (13689, 18824), (14118, 18252), (14661, 17576)]