489307568

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:1089

約数の個数: 40

約数和(自身を含む): 958272000

約数和(自身を除く): 468964432

約数列:

[1, 2, 4, 8, 16, 199, 239, 398, 478, 643, 796, 956, 1286, 1592, 1912, 2572, 3184, 3824, 5144, 10288, 47561, 95122, 127957, 153677, 190244, 255914, 307354, 380488, 511828, 614708, 760976, 1023656, 1229416, 2047312, 2458832, 30581723, 61163446, 122326892, 244653784, 489307568]

約数ペア:

[(1, 489307568), (2, 244653784), (4, 122326892), (8, 61163446), (16, 30581723), (199, 2458832), (239, 2047312), (398, 1229416), (478, 1023656), (643, 760976), (796, 614708), (956, 511828), (1286, 380488), (1592, 307354), (1912, 255914), (2572, 190244), (3184, 153677), (3824, 127957), (5144, 95122), (10288, 47561)]