81178900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{6709}}^1$

素因数の和:6745

約数の個数: 54

約数和(自身を含む): 193657310

約数和(自身を除く): 112478410

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 2420, 3025, 6050, 6709, 12100, 13418, 26836, 33545, 67090, 73799, 134180, 147598, 167725, 295196, 335450, 368995, 670900, 737990, 811789, 1475980, 1623578, 1844975, 3247156, 3689950, 4058945, 7379900, 8117890, 16235780, 20294725, 40589450, 81178900]

約数ペア:

[(1, 81178900), (2, 40589450), (4, 20294725), (5, 16235780), (10, 8117890), (11, 7379900), (20, 4058945), (22, 3689950), (25, 3247156), (44, 1844975), (50, 1623578), (55, 1475980), (100, 811789), (110, 737990), (121, 670900), (220, 368995), (242, 335450), (275, 295196), (484, 167725), (550, 147598), (605, 134180), (1100, 73799), (1210, 67090), (2420, 33545), (3025, 26836), (6050, 13418), (6709, 12100)]