281526560

素因数分解:

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

素因数の和:419

約数の個数: 144

約数和(自身を含む): 782119800

約数和(自身を除く): 500593240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 149, 160, 196, 224, 241, 245, 280, 298, 392, 482, 490, 560, 596, 745, 784, 964, 980, 1043, 1120, 1192, 1205, 1490, 1568, 1687, 1928, 1960, 2086, 2384, 2410, 2980, 3374, 3856, 3920, 4172, 4768, 4820, 5215, 5960, 6748, 7301, 7712, 7840, 8344, 8435, 9640, 10430, 11809, 11920, 13496, 14602, 16688, 16870, 19280, 20860, 23618, 23840, 26992, 29204, 33376, 33740, 35909, 36505, 38560, 41720, 47236, 53984, 58408, 59045, 67480, 71818, 73010, 83440, 94472, 116816, 118090, 134960, 143636, 146020, 166880, 179545, 188944, 233632, 236180, 251363, 269920, 287272, 292040, 359090, 377888, 472360, 502726, 574544, 584080, 718180, 944720, 1005452, 1149088, 1168160, 1256815, 1436360, 1759541, 1889440, 2010904, 2513630, 2872720, 3519082, 4021808, 5027260, 5745440, 7038164, 8043616, 8797705, 10054520, 14076328, 17595410, 20109040, 28152656, 35190820, 40218080, 56305312, 70381640, 140763280, 281526560]

約数ペア:

[(1, 281526560), (2, 140763280), (4, 70381640), (5, 56305312), (7, 40218080), (8, 35190820), (10, 28152656), (14, 20109040), (16, 17595410), (20, 14076328), (28, 10054520), (32, 8797705), (35, 8043616), (40, 7038164), (49, 5745440), (56, 5027260), (70, 4021808), (80, 3519082), (98, 2872720), (112, 2513630), (140, 2010904), (149, 1889440), (160, 1759541), (196, 1436360), (224, 1256815), (241, 1168160), (245, 1149088), (280, 1005452), (298, 944720), (392, 718180), (482, 584080), (490, 574544), (560, 502726), (596, 472360), (745, 377888), (784, 359090), (964, 292040), (980, 287272), (1043, 269920), (1120, 251363), (1192, 236180), (1205, 233632), (1490, 188944), (1568, 179545), (1687, 166880), (1928, 146020), (1960, 143636), (2086, 134960), (2384, 118090), (2410, 116816), (2980, 94472), (3374, 83440), (3856, 73010), (3920, 71818), (4172, 67480), (4768, 59045), (4820, 58408), (5215, 53984), (5960, 47236), (6748, 41720), (7301, 38560), (7712, 36505), (7840, 35909), (8344, 33740), (8435, 33376), (9640, 29204), (10430, 26992), (11809, 23840), (11920, 23618), (13496, 20860), (14602, 19280), (16688, 16870)]