68815120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7109}}^1$

素因数の和:7144

約数の個数: 60

約数和(自身を含む): 175887180

約数和(自身を除く): 107072060

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 7109, 9680, 14218, 28436, 35545, 56872, 71090, 78199, 113744, 142180, 156398, 284360, 312796, 390995, 568720, 625592, 781990, 860189, 1251184, 1563980, 1720378, 3127960, 3440756, 4300945, 6255920, 6881512, 8601890, 13763024, 17203780, 34407560, 68815120]

約数ペア:

[(1, 68815120), (2, 34407560), (4, 17203780), (5, 13763024), (8, 8601890), (10, 6881512), (11, 6255920), (16, 4300945), (20, 3440756), (22, 3127960), (40, 1720378), (44, 1563980), (55, 1251184), (80, 860189), (88, 781990), (110, 625592), (121, 568720), (176, 390995), (220, 312796), (242, 284360), (440, 156398), (484, 142180), (605, 113744), (880, 78199), (968, 71090), (1210, 56872), (1936, 35545), (2420, 28436), (4840, 14218), (7109, 9680)]