197711320

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{28571}}^1$

素因数の和:28755

約数の個数: 32

約数和(自身を含む): 447437520

約数和(自身を除く): 249726200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 28571, 57142, 114284, 142855, 228568, 285710, 571420, 1142840, 4942783, 9885566, 19771132, 24713915, 39542264, 49427830, 98855660, 197711320]

約数ペア:

[(1, 197711320), (2, 98855660), (4, 49427830), (5, 39542264), (8, 24713915), (10, 19771132), (20, 9885566), (40, 4942783), (173, 1142840), (346, 571420), (692, 285710), (865, 228568), (1384, 142855), (1730, 114284), (3460, 57142), (6920, 28571)]