64180784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3461}}^1$

素因数の和:3549

約数の個数: 40

約数和(自身を含む): 133079280

約数和(自身を除く): 68898496

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1159, 2318, 3461, 4636, 6922, 9272, 13844, 18544, 27688, 55376, 65759, 131518, 211121, 263036, 422242, 526072, 844484, 1052144, 1688968, 3377936, 4011299, 8022598, 16045196, 32090392, 64180784]

約数ペア:

[(1, 64180784), (2, 32090392), (4, 16045196), (8, 8022598), (16, 4011299), (19, 3377936), (38, 1688968), (61, 1052144), (76, 844484), (122, 526072), (152, 422242), (244, 263036), (304, 211121), (488, 131518), (976, 65759), (1159, 55376), (2318, 27688), (3461, 18544), (4636, 13844), (6922, 9272)]