291323120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:295

約数の個数: 160

約数和(自身を含む): 779950080

約数和(自身を除く): 488626960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 59, 62, 80, 88, 110, 118, 124, 155, 176, 181, 220, 236, 248, 295, 310, 341, 362, 440, 472, 496, 590, 620, 649, 682, 724, 880, 905, 944, 1180, 1240, 1298, 1364, 1448, 1705, 1810, 1829, 1991, 2360, 2480, 2596, 2728, 2896, 3245, 3410, 3620, 3658, 3982, 4720, 5192, 5456, 5611, 6490, 6820, 7240, 7316, 7964, 9145, 9955, 10384, 10679, 11222, 12980, 13640, 14480, 14632, 15928, 18290, 19910, 20119, 21358, 22444, 25960, 27280, 28055, 29264, 31856, 36580, 39820, 40238, 42716, 44888, 51920, 53395, 56110, 61721, 73160, 79640, 80476, 85432, 89776, 100595, 106790, 112220, 117469, 123442, 146320, 159280, 160952, 170864, 201190, 213580, 224440, 234938, 246884, 308605, 321904, 331049, 402380, 427160, 448880, 469876, 493768, 587345, 617210, 662098, 804760, 854320, 939752, 987536, 1174690, 1234420, 1324196, 1609520, 1655245, 1879504, 2349380, 2468840, 2648392, 3310490, 3641539, 4698760, 4937680, 5296784, 6620980, 7283078, 9397520, 13241960, 14566156, 18207695, 26483920, 29132312, 36415390, 58264624, 72830780, 145661560, 291323120]

約数ペア:

[(1, 291323120), (2, 145661560), (4, 72830780), (5, 58264624), (8, 36415390), (10, 29132312), (11, 26483920), (16, 18207695), (20, 14566156), (22, 13241960), (31, 9397520), (40, 7283078), (44, 6620980), (55, 5296784), (59, 4937680), (62, 4698760), (80, 3641539), (88, 3310490), (110, 2648392), (118, 2468840), (124, 2349380), (155, 1879504), (176, 1655245), (181, 1609520), (220, 1324196), (236, 1234420), (248, 1174690), (295, 987536), (310, 939752), (341, 854320), (362, 804760), (440, 662098), (472, 617210), (496, 587345), (590, 493768), (620, 469876), (649, 448880), (682, 427160), (724, 402380), (880, 331049), (905, 321904), (944, 308605), (1180, 246884), (1240, 234938), (1298, 224440), (1364, 213580), (1448, 201190), (1705, 170864), (1810, 160952), (1829, 159280), (1991, 146320), (2360, 123442), (2480, 117469), (2596, 112220), (2728, 106790), (2896, 100595), (3245, 89776), (3410, 85432), (3620, 80476), (3658, 79640), (3982, 73160), (4720, 61721), (5192, 56110), (5456, 53395), (5611, 51920), (6490, 44888), (6820, 42716), (7240, 40238), (7316, 39820), (7964, 36580), (9145, 31856), (9955, 29264), (10384, 28055), (10679, 27280), (11222, 25960), (12980, 22444), (13640, 21358), (14480, 20119), (14632, 19910), (15928, 18290)]