81251180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1021}}^1$

素因数の和:1226

約数の個数: 48

約数和(自身を含む): 179250624

約数和(自身を除く): 97999444

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 230, 346, 460, 692, 865, 1021, 1730, 2042, 3460, 3979, 4084, 5105, 7958, 10210, 15916, 19895, 20420, 23483, 39790, 46966, 79580, 93932, 117415, 176633, 234830, 353266, 469660, 706532, 883165, 1766330, 3532660, 4062559, 8125118, 16250236, 20312795, 40625590, 81251180]

約数ペア:

[(1, 81251180), (2, 40625590), (4, 20312795), (5, 16250236), (10, 8125118), (20, 4062559), (23, 3532660), (46, 1766330), (92, 883165), (115, 706532), (173, 469660), (230, 353266), (346, 234830), (460, 176633), (692, 117415), (865, 93932), (1021, 79580), (1730, 46966), (2042, 39790), (3460, 23483), (3979, 20420), (4084, 19895), (5105, 15916), (7958, 10210)]