71398720

素因数分解:

$2^6\times 5^1\times {\mathrm{347}}^1\times {\mathrm{643}}^1$

素因数の和:1007

約数の個数: 56

約数和(自身を含む): 170773344

約数和(自身を除く): 99374624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 347, 643, 694, 1286, 1388, 1735, 2572, 2776, 3215, 3470, 5144, 5552, 6430, 6940, 10288, 11104, 12860, 13880, 20576, 22208, 25720, 27760, 41152, 51440, 55520, 102880, 111040, 205760, 223121, 446242, 892484, 1115605, 1784968, 2231210, 3569936, 4462420, 7139872, 8924840, 14279744, 17849680, 35699360, 71398720]

約数ペア:

[(1, 71398720), (2, 35699360), (4, 17849680), (5, 14279744), (8, 8924840), (10, 7139872), (16, 4462420), (20, 3569936), (32, 2231210), (40, 1784968), (64, 1115605), (80, 892484), (160, 446242), (320, 223121), (347, 205760), (643, 111040), (694, 102880), (1286, 55520), (1388, 51440), (1735, 41152), (2572, 27760), (2776, 25720), (3215, 22208), (3470, 20576), (5144, 13880), (5552, 12860), (6430, 11104), (6940, 10288)]