256841816

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{7867}}^1$

素因数の和:7944

約数の個数: 64

約数和(自身を含む): 611815680

約数和(自身を除く): 354973864

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 53, 56, 77, 88, 106, 154, 212, 308, 371, 424, 583, 616, 742, 1166, 1484, 2332, 2968, 4081, 4664, 7867, 8162, 15734, 16324, 31468, 32648, 55069, 62936, 86537, 110138, 173074, 220276, 346148, 416951, 440552, 605759, 692296, 833902, 1211518, 1667804, 2423036, 2918657, 3335608, 4586461, 4846072, 5837314, 9172922, 11674628, 18345844, 23349256, 32105227, 36691688, 64210454, 128420908, 256841816]

約数ペア:

[(1, 256841816), (2, 128420908), (4, 64210454), (7, 36691688), (8, 32105227), (11, 23349256), (14, 18345844), (22, 11674628), (28, 9172922), (44, 5837314), (53, 4846072), (56, 4586461), (77, 3335608), (88, 2918657), (106, 2423036), (154, 1667804), (212, 1211518), (308, 833902), (371, 692296), (424, 605759), (583, 440552), (616, 416951), (742, 346148), (1166, 220276), (1484, 173074), (2332, 110138), (2968, 86537), (4081, 62936), (4664, 55069), (7867, 32648), (8162, 31468), (15734, 16324)]