291981560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 745113600

約数和(自身を除く): 453132040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 59, 62, 65, 104, 118, 124, 130, 155, 236, 248, 260, 295, 307, 310, 403, 472, 520, 590, 614, 620, 767, 806, 1180, 1228, 1240, 1534, 1535, 1612, 1829, 2015, 2360, 2456, 3068, 3070, 3224, 3658, 3835, 3991, 4030, 6136, 6140, 7316, 7670, 7982, 8060, 9145, 9517, 12280, 14632, 15340, 15964, 16120, 18113, 18290, 19034, 19955, 23777, 30680, 31928, 36226, 36580, 38068, 39910, 47554, 47585, 72452, 73160, 76136, 79820, 90565, 95108, 95170, 118885, 123721, 144904, 159640, 181130, 190216, 190340, 235469, 237770, 247442, 362260, 380680, 470938, 475540, 494884, 561503, 618605, 724520, 941876, 951080, 989768, 1123006, 1177345, 1237210, 1883752, 2246012, 2354690, 2474420, 2807515, 4492024, 4709380, 4948840, 5615030, 7299539, 9418760, 11230060, 14599078, 22460120, 29198156, 36497695, 58396312, 72995390, 145990780, 291981560]

約数ペア:

[(1, 291981560), (2, 145990780), (4, 72995390), (5, 58396312), (8, 36497695), (10, 29198156), (13, 22460120), (20, 14599078), (26, 11230060), (31, 9418760), (40, 7299539), (52, 5615030), (59, 4948840), (62, 4709380), (65, 4492024), (104, 2807515), (118, 2474420), (124, 2354690), (130, 2246012), (155, 1883752), (236, 1237210), (248, 1177345), (260, 1123006), (295, 989768), (307, 951080), (310, 941876), (403, 724520), (472, 618605), (520, 561503), (590, 494884), (614, 475540), (620, 470938), (767, 380680), (806, 362260), (1180, 247442), (1228, 237770), (1240, 235469), (1534, 190340), (1535, 190216), (1612, 181130), (1829, 159640), (2015, 144904), (2360, 123721), (2456, 118885), (3068, 95170), (3070, 95108), (3224, 90565), (3658, 79820), (3835, 76136), (3991, 73160), (4030, 72452), (6136, 47585), (6140, 47554), (7316, 39910), (7670, 38068), (7982, 36580), (8060, 36226), (9145, 31928), (9517, 30680), (12280, 23777), (14632, 19955), (15340, 19034), (15964, 18290), (16120, 18113)]