178537680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 240

約数和(自身を含む): 653053440

約数和(自身を除く): 474515760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 48, 57, 60, 62, 72, 76, 80, 90, 93, 95, 114, 120, 124, 144, 152, 155, 171, 180, 186, 190, 228, 240, 248, 279, 285, 304, 310, 342, 360, 372, 380, 421, 456, 465, 496, 558, 570, 589, 620, 684, 720, 744, 760, 842, 855, 912, 930, 1116, 1140, 1178, 1240, 1263, 1368, 1395, 1488, 1520, 1684, 1710, 1767, 1860, 2105, 2232, 2280, 2356, 2480, 2526, 2736, 2790, 2945, 3368, 3420, 3534, 3720, 3789, 4210, 4464, 4560, 4712, 5052, 5301, 5580, 5890, 6315, 6736, 6840, 7068, 7440, 7578, 7999, 8420, 8835, 9424, 10104, 10602, 11160, 11780, 12630, 13051, 13680, 14136, 15156, 15998, 16840, 17670, 18945, 20208, 21204, 22320, 23560, 23997, 25260, 26102, 26505, 28272, 30312, 31996, 33680, 35340, 37890, 39153, 39995, 42408, 47120, 47994, 50520, 52204, 53010, 60624, 63992, 65255, 70680, 71991, 75780, 78306, 79990, 84816, 95988, 101040, 104408, 106020, 117459, 119985, 127984, 130510, 141360, 143982, 151560, 156612, 159980, 191976, 195765, 208816, 212040, 234918, 239970, 247969, 261020, 287964, 303120, 313224, 319960, 359955, 383952, 391530, 424080, 469836, 479940, 495938, 522040, 575928, 587295, 626448, 639920, 719910, 743907, 783060, 939672, 959880, 991876, 1044080, 1151856, 1174590, 1239845, 1439820, 1487814, 1566120, 1879344, 1919760, 1983752, 2231721, 2349180, 2479690, 2879640, 2975628, 3132240, 3719535, 3967504, 4463442, 4698360, 4959380, 5759280, 5951256, 7439070, 8926884, 9396720, 9918760, 11158605, 11902512, 14878140, 17853768, 19837520, 22317210, 29756280, 35707536, 44634420, 59512560, 89268840, 178537680]

約数ペア:

[(1, 178537680), (2, 89268840), (3, 59512560), (4, 44634420), (5, 35707536), (6, 29756280), (8, 22317210), (9, 19837520), (10, 17853768), (12, 14878140), (15, 11902512), (16, 11158605), (18, 9918760), (19, 9396720), (20, 8926884), (24, 7439070), (30, 5951256), (31, 5759280), (36, 4959380), (38, 4698360), (40, 4463442), (45, 3967504), (48, 3719535), (57, 3132240), (60, 2975628), (62, 2879640), (72, 2479690), (76, 2349180), (80, 2231721), (90, 1983752), (93, 1919760), (95, 1879344), (114, 1566120), (120, 1487814), (124, 1439820), (144, 1239845), (152, 1174590), (155, 1151856), (171, 1044080), (180, 991876), (186, 959880), (190, 939672), (228, 783060), (240, 743907), (248, 719910), (279, 639920), (285, 626448), (304, 587295), (310, 575928), (342, 522040), (360, 495938), (372, 479940), (380, 469836), (421, 424080), (456, 391530), (465, 383952), (496, 359955), (558, 319960), (570, 313224), (589, 303120), (620, 287964), (684, 261020), (720, 247969), (744, 239970), (760, 234918), (842, 212040), (855, 208816), (912, 195765), (930, 191976), (1116, 159980), (1140, 156612), (1178, 151560), (1240, 143982), (1263, 141360), (1368, 130510), (1395, 127984), (1488, 119985), (1520, 117459), (1684, 106020), (1710, 104408), (1767, 101040), (1860, 95988), (2105, 84816), (2232, 79990), (2280, 78306), (2356, 75780), (2480, 71991), (2526, 70680), (2736, 65255), (2790, 63992), (2945, 60624), (3368, 53010), (3420, 52204), (3534, 50520), (3720, 47994), (3789, 47120), (4210, 42408), (4464, 39995), (4560, 39153), (4712, 37890), (5052, 35340), (5301, 33680), (5580, 31996), (5890, 30312), (6315, 28272), (6736, 26505), (6840, 26102), (7068, 25260), (7440, 23997), (7578, 23560), (7999, 22320), (8420, 21204), (8835, 20208), (9424, 18945), (10104, 17670), (10602, 16840), (11160, 15998), (11780, 15156), (12630, 14136), (13051, 13680)]