204396880

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:596

約数の個数: 80

約数和(自身を含む): 491932800

約数和(自身を除く): 287535920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 199, 296, 347, 370, 398, 592, 694, 740, 796, 995, 1388, 1480, 1592, 1735, 1990, 2776, 2960, 3184, 3470, 3980, 5552, 6940, 7363, 7960, 12839, 13880, 14726, 15920, 25678, 27760, 29452, 36815, 51356, 58904, 64195, 69053, 73630, 102712, 117808, 128390, 138106, 147260, 205424, 256780, 276212, 294520, 345265, 513560, 552424, 589040, 690530, 1027120, 1104848, 1381060, 2554961, 2762120, 5109922, 5524240, 10219844, 12774805, 20439688, 25549610, 40879376, 51099220, 102198440, 204396880]

約数ペア:

[(1, 204396880), (2, 102198440), (4, 51099220), (5, 40879376), (8, 25549610), (10, 20439688), (16, 12774805), (20, 10219844), (37, 5524240), (40, 5109922), (74, 2762120), (80, 2554961), (148, 1381060), (185, 1104848), (199, 1027120), (296, 690530), (347, 589040), (370, 552424), (398, 513560), (592, 345265), (694, 294520), (740, 276212), (796, 256780), (995, 205424), (1388, 147260), (1480, 138106), (1592, 128390), (1735, 117808), (1990, 102712), (2776, 73630), (2960, 69053), (3184, 64195), (3470, 58904), (3980, 51356), (5552, 36815), (6940, 29452), (7363, 27760), (7960, 25678), (12839, 15920), (13880, 14726)]