647246520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1090

約数の個数: 192

約数和(自身を含む): 2210457600

約数和(自身を除く): 1563211080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 59, 60, 62, 72, 90, 93, 118, 120, 124, 155, 177, 180, 186, 236, 248, 279, 295, 310, 354, 360, 372, 465, 472, 531, 558, 590, 620, 708, 744, 885, 930, 983, 1062, 1116, 1180, 1240, 1395, 1416, 1770, 1829, 1860, 1966, 2124, 2232, 2360, 2655, 2790, 2949, 3540, 3658, 3720, 3932, 4248, 4915, 5310, 5487, 5580, 5898, 7080, 7316, 7864, 8847, 9145, 9830, 10620, 10974, 11160, 11796, 14632, 14745, 16461, 17694, 18290, 19660, 21240, 21948, 23592, 27435, 29490, 30473, 32922, 35388, 36580, 39320, 43896, 44235, 54870, 57997, 58980, 60946, 65844, 70776, 73160, 82305, 88470, 91419, 109740, 115994, 117960, 121892, 131688, 152365, 164610, 173991, 176940, 182838, 219480, 231988, 243784, 274257, 289985, 304730, 329220, 347982, 353880, 365676, 457095, 463976, 521973, 548514, 579970, 609460, 658440, 695964, 731352, 869955, 914190, 1043946, 1097028, 1159940, 1218920, 1371285, 1391928, 1739910, 1797907, 1828380, 2087892, 2194056, 2319880, 2609865, 2742570, 3479820, 3595814, 3656760, 4175784, 5219730, 5393721, 5485140, 6959640, 7191628, 8989535, 10439460, 10787442, 10970280, 14383256, 16181163, 17979070, 20878920, 21574884, 26968605, 32362326, 35958140, 43149768, 53937210, 64724652, 71916280, 80905815, 107874420, 129449304, 161811630, 215748840, 323623260, 647246520]

約数ペア:

[(1, 647246520), (2, 323623260), (3, 215748840), (4, 161811630), (5, 129449304), (6, 107874420), (8, 80905815), (9, 71916280), (10, 64724652), (12, 53937210), (15, 43149768), (18, 35958140), (20, 32362326), (24, 26968605), (30, 21574884), (31, 20878920), (36, 17979070), (40, 16181163), (45, 14383256), (59, 10970280), (60, 10787442), (62, 10439460), (72, 8989535), (90, 7191628), (93, 6959640), (118, 5485140), (120, 5393721), (124, 5219730), (155, 4175784), (177, 3656760), (180, 3595814), (186, 3479820), (236, 2742570), (248, 2609865), (279, 2319880), (295, 2194056), (310, 2087892), (354, 1828380), (360, 1797907), (372, 1739910), (465, 1391928), (472, 1371285), (531, 1218920), (558, 1159940), (590, 1097028), (620, 1043946), (708, 914190), (744, 869955), (885, 731352), (930, 695964), (983, 658440), (1062, 609460), (1116, 579970), (1180, 548514), (1240, 521973), (1395, 463976), (1416, 457095), (1770, 365676), (1829, 353880), (1860, 347982), (1966, 329220), (2124, 304730), (2232, 289985), (2360, 274257), (2655, 243784), (2790, 231988), (2949, 219480), (3540, 182838), (3658, 176940), (3720, 173991), (3932, 164610), (4248, 152365), (4915, 131688), (5310, 121892), (5487, 117960), (5580, 115994), (5898, 109740), (7080, 91419), (7316, 88470), (7864, 82305), (8847, 73160), (9145, 70776), (9830, 65844), (10620, 60946), (10974, 58980), (11160, 57997), (11796, 54870), (14632, 44235), (14745, 43896), (16461, 39320), (17694, 36580), (18290, 35388), (19660, 32922), (21240, 30473), (21948, 29490), (23592, 27435)]