256738768

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^2$

素因数の和:245

約数の個数: 90

約数和(自身を含む): 594709766

約数和(自身を除く): 337970998

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 101, 104, 121, 143, 176, 202, 208, 242, 286, 404, 484, 572, 808, 968, 1111, 1144, 1313, 1573, 1616, 1936, 2222, 2288, 2626, 3146, 4444, 5252, 6292, 8888, 10201, 10504, 12221, 12584, 14443, 17776, 20402, 21008, 24442, 25168, 28886, 40804, 48884, 57772, 81608, 97768, 112211, 115544, 132613, 158873, 163216, 195536, 224422, 231088, 265226, 317746, 448844, 530452, 635492, 897688, 1060904, 1234321, 1270984, 1458743, 1795376, 2121808, 2468642, 2541968, 2917486, 4937284, 5834972, 9874568, 11669944, 16046173, 19749136, 23339888, 32092346, 64184692, 128369384, 256738768]

約数ペア:

[(1, 256738768), (2, 128369384), (4, 64184692), (8, 32092346), (11, 23339888), (13, 19749136), (16, 16046173), (22, 11669944), (26, 9874568), (44, 5834972), (52, 4937284), (88, 2917486), (101, 2541968), (104, 2468642), (121, 2121808), (143, 1795376), (176, 1458743), (202, 1270984), (208, 1234321), (242, 1060904), (286, 897688), (404, 635492), (484, 530452), (572, 448844), (808, 317746), (968, 265226), (1111, 231088), (1144, 224422), (1313, 195536), (1573, 163216), (1616, 158873), (1936, 132613), (2222, 115544), (2288, 112211), (2626, 97768), (3146, 81608), (4444, 57772), (5252, 48884), (6292, 40804), (8888, 28886), (10201, 25168), (10504, 24442), (12221, 21008), (12584, 20402), (14443, 17776)]