18561568

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 38294424

約数和(自身を除く): 19732856

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 74, 122, 148, 244, 257, 296, 488, 514, 592, 976, 1028, 1184, 1952, 2056, 2257, 4112, 4514, 8224, 9028, 9509, 15677, 18056, 19018, 31354, 36112, 38036, 62708, 72224, 76072, 125416, 152144, 250832, 304288, 501664, 580049, 1160098, 2320196, 4640392, 9280784, 18561568]

約数ペア:

[(1, 18561568), (2, 9280784), (4, 4640392), (8, 2320196), (16, 1160098), (32, 580049), (37, 501664), (61, 304288), (74, 250832), (122, 152144), (148, 125416), (244, 76072), (257, 72224), (296, 62708), (488, 38036), (514, 36112), (592, 31354), (976, 19018), (1028, 18056), (1184, 15677), (1952, 9509), (2056, 9028), (2257, 8224), (4112, 4514)]