209434880

素因数分解:

$2^8\times 5^1\times {\mathrm{163621}}^1$

素因数の和:163642

約数の個数: 36

約数和(自身を含む): 501665052

約数和(自身を除く): 292230172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 163621, 327242, 654484, 818105, 1308968, 1636210, 2617936, 3272420, 5235872, 6544840, 10471744, 13089680, 20943488, 26179360, 41886976, 52358720, 104717440, 209434880]

約数ペア:

[(1, 209434880), (2, 104717440), (4, 52358720), (5, 41886976), (8, 26179360), (10, 20943488), (16, 13089680), (20, 10471744), (32, 6544840), (40, 5235872), (64, 3272420), (80, 2617936), (128, 1636210), (160, 1308968), (256, 818105), (320, 654484), (640, 327242), (1280, 163621)]