81947646

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 214617600

約数和(自身を除く): 132669954

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 27, 33, 38, 53, 54, 57, 66, 99, 106, 114, 137, 159, 171, 198, 209, 274, 297, 318, 342, 411, 418, 477, 513, 583, 594, 627, 822, 954, 1007, 1026, 1166, 1233, 1254, 1431, 1507, 1749, 1881, 2014, 2466, 2603, 2862, 3014, 3021, 3498, 3699, 3762, 4521, 5206, 5247, 5643, 6042, 7261, 7398, 7809, 9042, 9063, 10494, 11077, 11286, 13563, 14522, 15618, 15741, 18126, 21783, 22154, 23427, 27126, 27189, 28633, 31482, 33231, 40689, 43566, 46854, 54378, 57266, 65349, 66462, 70281, 79871, 81378, 85899, 99693, 130698, 137959, 140562, 159742, 171798, 196047, 199386, 239613, 257697, 275918, 299079, 392094, 413877, 479226, 515394, 598158, 718839, 773091, 827754, 1241631, 1437678, 1517549, 1546182, 2156517, 2483262, 3035098, 3724893, 4313034, 4552647, 7449786, 9105294, 13657941, 27315882, 40973823, 81947646]

約数ペア:

[(1, 81947646), (2, 40973823), (3, 27315882), (6, 13657941), (9, 9105294), (11, 7449786), (18, 4552647), (19, 4313034), (22, 3724893), (27, 3035098), (33, 2483262), (38, 2156517), (53, 1546182), (54, 1517549), (57, 1437678), (66, 1241631), (99, 827754), (106, 773091), (114, 718839), (137, 598158), (159, 515394), (171, 479226), (198, 413877), (209, 392094), (274, 299079), (297, 275918), (318, 257697), (342, 239613), (411, 199386), (418, 196047), (477, 171798), (513, 159742), (583, 140562), (594, 137959), (627, 130698), (822, 99693), (954, 85899), (1007, 81378), (1026, 79871), (1166, 70281), (1233, 66462), (1254, 65349), (1431, 57266), (1507, 54378), (1749, 46854), (1881, 43566), (2014, 40689), (2466, 33231), (2603, 31482), (2862, 28633), (3014, 27189), (3021, 27126), (3498, 23427), (3699, 22154), (3762, 21783), (4521, 18126), (5206, 15741), (5247, 15618), (5643, 14522), (6042, 13563), (7261, 11286), (7398, 11077), (7809, 10494), (9042, 9063)]