221136640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5573}}^1$

素因数の和:5625

約数の個数: 72

約数和(自身を含む): 546876288

約数和(自身を除く): 325739648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5573, 7936, 9920, 11146, 19840, 22292, 27865, 39680, 44584, 55730, 89168, 111460, 172763, 178336, 222920, 345526, 356672, 445840, 691052, 713344, 863815, 891680, 1382104, 1426688, 1727630, 1783360, 2764208, 3455260, 3566720, 5528416, 6910520, 7133440, 11056832, 13821040, 22113664, 27642080, 44227328, 55284160, 110568320, 221136640]

約数ペア:

[(1, 221136640), (2, 110568320), (4, 55284160), (5, 44227328), (8, 27642080), (10, 22113664), (16, 13821040), (20, 11056832), (31, 7133440), (32, 6910520), (40, 5528416), (62, 3566720), (64, 3455260), (80, 2764208), (124, 1783360), (128, 1727630), (155, 1426688), (160, 1382104), (248, 891680), (256, 863815), (310, 713344), (320, 691052), (496, 445840), (620, 356672), (640, 345526), (992, 222920), (1240, 178336), (1280, 172763), (1984, 111460), (2480, 89168), (3968, 55730), (4960, 44584), (5573, 39680), (7936, 27865), (9920, 22292), (11146, 19840)]