81563650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{587}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 174113856

約数和(自身を除く): 92550206

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 397, 587, 794, 1174, 1985, 2779, 2935, 3970, 4109, 5558, 5870, 8218, 9925, 13895, 14675, 19850, 20545, 27790, 29350, 41090, 69475, 102725, 138950, 205450, 233039, 466078, 1165195, 1631273, 2330390, 3262546, 5825975, 8156365, 11651950, 16312730, 40781825, 81563650]

約数ペア:

[(1, 81563650), (2, 40781825), (5, 16312730), (7, 11651950), (10, 8156365), (14, 5825975), (25, 3262546), (35, 2330390), (50, 1631273), (70, 1165195), (175, 466078), (350, 233039), (397, 205450), (587, 138950), (794, 102725), (1174, 69475), (1985, 41090), (2779, 29350), (2935, 27790), (3970, 20545), (4109, 19850), (5558, 14675), (5870, 13895), (8218, 9925)]