221199440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:421

約数の個数: 160

約数和(自身を含む): 648172800

約数和(自身を除く): 426973360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 149, 154, 176, 220, 241, 280, 298, 308, 385, 440, 482, 560, 596, 616, 745, 770, 880, 964, 1043, 1192, 1205, 1232, 1490, 1540, 1639, 1687, 1928, 2086, 2384, 2410, 2651, 2980, 3080, 3278, 3374, 3856, 4172, 4820, 5215, 5302, 5960, 6160, 6556, 6748, 8195, 8344, 8435, 9640, 10430, 10604, 11473, 11920, 13112, 13255, 13496, 16390, 16688, 16870, 18557, 19280, 20860, 21208, 22946, 26224, 26510, 26992, 32780, 33740, 35909, 37114, 41720, 42416, 45892, 53020, 57365, 65560, 67480, 71818, 74228, 83440, 91784, 92785, 106040, 114730, 131120, 134960, 143636, 148456, 179545, 183568, 185570, 212080, 229460, 251363, 287272, 296912, 359090, 371140, 394999, 458920, 502726, 574544, 718180, 742280, 789998, 917840, 1005452, 1256815, 1436360, 1484560, 1579996, 1974995, 2010904, 2513630, 2764993, 2872720, 3159992, 3949990, 4021808, 5027260, 5529986, 6319984, 7899980, 10054520, 11059972, 13824965, 15799960, 20109040, 22119944, 27649930, 31599920, 44239888, 55299860, 110599720, 221199440]

約数ペア:

[(1, 221199440), (2, 110599720), (4, 55299860), (5, 44239888), (7, 31599920), (8, 27649930), (10, 22119944), (11, 20109040), (14, 15799960), (16, 13824965), (20, 11059972), (22, 10054520), (28, 7899980), (35, 6319984), (40, 5529986), (44, 5027260), (55, 4021808), (56, 3949990), (70, 3159992), (77, 2872720), (80, 2764993), (88, 2513630), (110, 2010904), (112, 1974995), (140, 1579996), (149, 1484560), (154, 1436360), (176, 1256815), (220, 1005452), (241, 917840), (280, 789998), (298, 742280), (308, 718180), (385, 574544), (440, 502726), (482, 458920), (560, 394999), (596, 371140), (616, 359090), (745, 296912), (770, 287272), (880, 251363), (964, 229460), (1043, 212080), (1192, 185570), (1205, 183568), (1232, 179545), (1490, 148456), (1540, 143636), (1639, 134960), (1687, 131120), (1928, 114730), (2086, 106040), (2384, 92785), (2410, 91784), (2651, 83440), (2980, 74228), (3080, 71818), (3278, 67480), (3374, 65560), (3856, 57365), (4172, 53020), (4820, 45892), (5215, 42416), (5302, 41720), (5960, 37114), (6160, 35909), (6556, 33740), (6748, 32780), (8195, 26992), (8344, 26510), (8435, 26224), (9640, 22946), (10430, 21208), (10604, 20860), (11473, 19280), (11920, 18557), (13112, 16870), (13255, 16688), (13496, 16390)]