81378976

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19121}}^1$

素因数の和:19157

約数の個数: 48

約数和(自身を含む): 192749760

約数和(自身を除く): 111370784

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 19121, 38242, 76484, 133847, 152968, 267694, 305936, 363299, 535388, 611872, 726598, 1070776, 1453196, 2141552, 2543093, 2906392, 4283104, 5086186, 5812784, 10172372, 11625568, 20344744, 40689488, 81378976]

約数ペア:

[(1, 81378976), (2, 40689488), (4, 20344744), (7, 11625568), (8, 10172372), (14, 5812784), (16, 5086186), (19, 4283104), (28, 2906392), (32, 2543093), (38, 2141552), (56, 1453196), (76, 1070776), (112, 726598), (133, 611872), (152, 535388), (224, 363299), (266, 305936), (304, 267694), (532, 152968), (608, 133847), (1064, 76484), (2128, 38242), (4256, 19121)]