218295040

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{857}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 526125600

約数和(自身を除く): 307830560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 398, 640, 796, 857, 995, 1280, 1592, 1714, 1990, 3184, 3428, 3980, 4285, 6368, 6856, 7960, 8570, 12736, 13712, 15920, 17140, 25472, 27424, 31840, 34280, 50944, 54848, 63680, 68560, 109696, 127360, 137120, 170543, 219392, 254720, 274240, 341086, 548480, 682172, 852715, 1096960, 1364344, 1705430, 2728688, 3410860, 5457376, 6821720, 10914752, 13643440, 21829504, 27286880, 43659008, 54573760, 109147520, 218295040]

約数ペア:

[(1, 218295040), (2, 109147520), (4, 54573760), (5, 43659008), (8, 27286880), (10, 21829504), (16, 13643440), (20, 10914752), (32, 6821720), (40, 5457376), (64, 3410860), (80, 2728688), (128, 1705430), (160, 1364344), (199, 1096960), (256, 852715), (320, 682172), (398, 548480), (640, 341086), (796, 274240), (857, 254720), (995, 219392), (1280, 170543), (1592, 137120), (1714, 127360), (1990, 109696), (3184, 68560), (3428, 63680), (3980, 54848), (4285, 50944), (6368, 34280), (6856, 31840), (7960, 27424), (8570, 25472), (12736, 17140), (13712, 15920)]