81363780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2027}}^1$

素因数の和:2265

約数の個数: 72

約数和(自身を含む): 248032512

約数和(自身を除く): 166668732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2027, 2230, 2676, 3345, 4014, 4054, 4460, 6081, 6690, 8028, 8108, 10035, 10135, 12162, 13380, 18243, 20070, 20270, 24324, 30405, 36486, 40140, 40540, 60810, 72972, 91215, 121620, 182430, 364860, 452021, 904042, 1356063, 1808084, 2260105, 2712126, 4068189, 4520210, 5424252, 6780315, 8136378, 9040420, 13560630, 16272756, 20340945, 27121260, 40681890, 81363780]

約数ペア:

[(1, 81363780), (2, 40681890), (3, 27121260), (4, 20340945), (5, 16272756), (6, 13560630), (9, 9040420), (10, 8136378), (12, 6780315), (15, 5424252), (18, 4520210), (20, 4068189), (30, 2712126), (36, 2260105), (45, 1808084), (60, 1356063), (90, 904042), (180, 452021), (223, 364860), (446, 182430), (669, 121620), (892, 91215), (1115, 72972), (1338, 60810), (2007, 40540), (2027, 40140), (2230, 36486), (2676, 30405), (3345, 24324), (4014, 20270), (4054, 20070), (4460, 18243), (6081, 13380), (6690, 12162), (8028, 10135), (8108, 10035)]