31391778

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 72069120

約数和(自身を除く): 40677342

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 67, 93, 134, 186, 201, 229, 341, 402, 458, 682, 687, 737, 1023, 1374, 1474, 2046, 2077, 2211, 2519, 4154, 4422, 5038, 6231, 7099, 7557, 12462, 14198, 15114, 15343, 21297, 22847, 30686, 42594, 45694, 46029, 68541, 78089, 92058, 137082, 156178, 168773, 234267, 337546, 468534, 475633, 506319, 951266, 1012638, 1426899, 2853798, 5231963, 10463926, 15695889, 31391778]

約数ペア:

[(1, 31391778), (2, 15695889), (3, 10463926), (6, 5231963), (11, 2853798), (22, 1426899), (31, 1012638), (33, 951266), (62, 506319), (66, 475633), (67, 468534), (93, 337546), (134, 234267), (186, 168773), (201, 156178), (229, 137082), (341, 92058), (402, 78089), (458, 68541), (682, 46029), (687, 45694), (737, 42594), (1023, 30686), (1374, 22847), (1474, 21297), (2046, 15343), (2077, 15114), (2211, 14198), (2519, 12462), (4154, 7557), (4422, 7099), (5038, 6231)]