81990524

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2237}}^1$

素因数の和:2283

約数の個数: 72

約数和(自身を含む): 192879792

約数和(自身を除く): 110889268

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 748, 833, 1078, 1309, 1666, 2156, 2237, 2618, 3332, 4474, 5236, 8948, 9163, 15659, 18326, 24607, 31318, 36652, 38029, 49214, 62636, 76058, 98428, 109613, 152116, 172249, 219226, 266203, 344498, 418319, 438452, 532406, 688996, 836638, 1064812, 1205743, 1673276, 1863421, 2411486, 2928233, 3726842, 4822972, 5856466, 7453684, 11712932, 20497631, 40995262, 81990524]

約数ペア:

[(1, 81990524), (2, 40995262), (4, 20497631), (7, 11712932), (11, 7453684), (14, 5856466), (17, 4822972), (22, 3726842), (28, 2928233), (34, 2411486), (44, 1863421), (49, 1673276), (68, 1205743), (77, 1064812), (98, 836638), (119, 688996), (154, 532406), (187, 438452), (196, 418319), (238, 344498), (308, 266203), (374, 219226), (476, 172249), (539, 152116), (748, 109613), (833, 98428), (1078, 76058), (1309, 62636), (1666, 49214), (2156, 38029), (2237, 36652), (2618, 31318), (3332, 24607), (4474, 18326), (5236, 15659), (8948, 9163)]