257512736

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2801}}^1$

素因数の和:2854

約数の個数: 72

約数和(自身を含む): 581476644

約数和(自身を除く): 323963908

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 416, 442, 544, 676, 884, 1352, 1768, 2704, 2801, 2873, 3536, 5408, 5602, 5746, 7072, 11204, 11492, 22408, 22984, 36413, 44816, 45968, 47617, 72826, 89632, 91936, 95234, 145652, 190468, 291304, 380936, 473369, 582608, 619021, 761872, 946738, 1165216, 1238042, 1523744, 1893476, 2476084, 3786952, 4952168, 7573904, 8047273, 9904336, 15147808, 16094546, 19808672, 32189092, 64378184, 128756368, 257512736]

約数ペア:

[(1, 257512736), (2, 128756368), (4, 64378184), (8, 32189092), (13, 19808672), (16, 16094546), (17, 15147808), (26, 9904336), (32, 8047273), (34, 7573904), (52, 4952168), (68, 3786952), (104, 2476084), (136, 1893476), (169, 1523744), (208, 1238042), (221, 1165216), (272, 946738), (338, 761872), (416, 619021), (442, 582608), (544, 473369), (676, 380936), (884, 291304), (1352, 190468), (1768, 145652), (2704, 95234), (2801, 91936), (2873, 89632), (3536, 72826), (5408, 47617), (5602, 45968), (5746, 44816), (7072, 36413), (11204, 22984), (11492, 22408)]