17720150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 38006496

約数和(自身を除く): 20286346

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 197, 257, 350, 394, 514, 985, 1285, 1379, 1799, 1970, 2570, 2758, 3598, 4925, 6425, 6895, 8995, 9850, 12850, 13790, 17990, 34475, 44975, 50629, 68950, 89950, 101258, 253145, 354403, 506290, 708806, 1265725, 1772015, 2531450, 3544030, 8860075, 17720150]

約数ペア:

[(1, 17720150), (2, 8860075), (5, 3544030), (7, 2531450), (10, 1772015), (14, 1265725), (25, 708806), (35, 506290), (50, 354403), (70, 253145), (175, 101258), (197, 89950), (257, 68950), (350, 50629), (394, 44975), (514, 34475), (985, 17990), (1285, 13790), (1379, 12850), (1799, 9850), (1970, 8995), (2570, 6895), (2758, 6425), (3598, 4925)]