197914880

素因数分解:

$2^8\times 5^1\times {\mathrm{154621}}^1$

素因数の和:154642

約数の個数: 36

約数和(自身を含む): 474071052

約数和(自身を除く): 276156172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 154621, 309242, 618484, 773105, 1236968, 1546210, 2473936, 3092420, 4947872, 6184840, 9895744, 12369680, 19791488, 24739360, 39582976, 49478720, 98957440, 197914880]

約数ペア:

[(1, 197914880), (2, 98957440), (4, 49478720), (5, 39582976), (8, 24739360), (10, 19791488), (16, 12369680), (20, 9895744), (32, 6184840), (40, 4947872), (64, 3092420), (80, 2473936), (128, 1546210), (160, 1236968), (256, 773105), (320, 618484), (640, 309242), (1280, 154621)]