194940400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 120

約数和(自身を含む): 492032000

約数和(自身を除く): 297091600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 79, 80, 100, 124, 155, 158, 199, 200, 248, 310, 316, 395, 398, 400, 496, 620, 632, 775, 790, 796, 995, 1240, 1264, 1550, 1580, 1592, 1975, 1990, 2449, 2480, 3100, 3160, 3184, 3950, 3980, 4898, 4975, 6169, 6200, 6320, 7900, 7960, 9796, 9950, 12245, 12338, 12400, 15721, 15800, 15920, 19592, 19900, 24490, 24676, 30845, 31442, 31600, 39184, 39800, 48980, 49352, 61225, 61690, 62884, 78605, 79600, 97960, 98704, 122450, 123380, 125768, 154225, 157210, 195920, 244900, 246760, 251536, 308450, 314420, 393025, 487351, 489800, 493520, 616900, 628840, 786050, 974702, 979600, 1233800, 1257680, 1572100, 1949404, 2436755, 2467600, 3144200, 3898808, 4873510, 6288400, 7797616, 9747020, 12183775, 19494040, 24367550, 38988080, 48735100, 97470200, 194940400]

約数ペア:

[(1, 194940400), (2, 97470200), (4, 48735100), (5, 38988080), (8, 24367550), (10, 19494040), (16, 12183775), (20, 9747020), (25, 7797616), (31, 6288400), (40, 4873510), (50, 3898808), (62, 3144200), (79, 2467600), (80, 2436755), (100, 1949404), (124, 1572100), (155, 1257680), (158, 1233800), (199, 979600), (200, 974702), (248, 786050), (310, 628840), (316, 616900), (395, 493520), (398, 489800), (400, 487351), (496, 393025), (620, 314420), (632, 308450), (775, 251536), (790, 246760), (796, 244900), (995, 195920), (1240, 157210), (1264, 154225), (1550, 125768), (1580, 123380), (1592, 122450), (1975, 98704), (1990, 97960), (2449, 79600), (2480, 78605), (3100, 62884), (3160, 61690), (3184, 61225), (3950, 49352), (3980, 48980), (4898, 39800), (4975, 39184), (6169, 31600), (6200, 31442), (6320, 30845), (7900, 24676), (7960, 24490), (9796, 19900), (9950, 19592), (12245, 15920), (12338, 15800), (12400, 15721)]