172704140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{6199}}^1$

素因数の和:6414

約数の個数: 48

約数和(自身を含む): 416640000

約数和(自身を除く): 243935860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6199, 6965, 12398, 13930, 24796, 27860, 30995, 43393, 61990, 86786, 123980, 173572, 216965, 433930, 867860, 1233601, 2467202, 4934404, 6168005, 8635207, 12336010, 17270414, 24672020, 34540828, 43176035, 86352070, 172704140]

約数ペア:

[(1, 172704140), (2, 86352070), (4, 43176035), (5, 34540828), (7, 24672020), (10, 17270414), (14, 12336010), (20, 8635207), (28, 6168005), (35, 4934404), (70, 2467202), (140, 1233601), (199, 867860), (398, 433930), (796, 216965), (995, 173572), (1393, 123980), (1990, 86786), (2786, 61990), (3980, 43393), (5572, 30995), (6199, 27860), (6965, 24796), (12398, 13930)]