20815679520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{760807}}^1$

素因数の和:760847

約数の個数: 144

約数和(自身を含む): 74772210240

約数和(自身を除く): 53956530720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 684, 720, 760, 855, 912, 1140, 1368, 1440, 1520, 1710, 1824, 2280, 2736, 3040, 3420, 4560, 5472, 6840, 9120, 13680, 27360, 760807, 1521614, 2282421, 3043228, 3804035, 4564842, 6086456, 6847263, 7608070, 9129684, 11412105, 12172912, 13694526, 14455333, 15216140, 18259368, 22824210, 24345824, 27389052, 28910666, 30432280, 34236315, 36518736, 43365999, 45648420, 54778104, 57821332, 60864560, 68472630, 72276665, 73037472, 86731998, 91296840, 109556208, 115642664, 121729120, 130097997, 136945260, 144553330, 173463996, 182593680, 216829995, 219112416, 231285328, 260195994, 273890520, 289106660, 346927992, 365187360, 433659990, 462570656, 520391988, 547781040, 578213320, 650489985, 693855984, 867319980, 1040783976, 1095562080, 1156426640, 1300979970, 1387711968, 1734639960, 2081567952, 2312853280, 2601959940, 3469279920, 4163135904, 5203919880, 6938559840, 10407839760, 20815679520]

約数ペア:

[(1, 20815679520), (2, 10407839760), (3, 6938559840), (4, 5203919880), (5, 4163135904), (6, 3469279920), (8, 2601959940), (9, 2312853280), (10, 2081567952), (12, 1734639960), (15, 1387711968), (16, 1300979970), (18, 1156426640), (19, 1095562080), (20, 1040783976), (24, 867319980), (30, 693855984), (32, 650489985), (36, 578213320), (38, 547781040), (40, 520391988), (45, 462570656), (48, 433659990), (57, 365187360), (60, 346927992), (72, 289106660), (76, 273890520), (80, 260195994), (90, 231285328), (95, 219112416), (96, 216829995), (114, 182593680), (120, 173463996), (144, 144553330), (152, 136945260), (160, 130097997), (171, 121729120), (180, 115642664), (190, 109556208), (228, 91296840), (240, 86731998), (285, 73037472), (288, 72276665), (304, 68472630), (342, 60864560), (360, 57821332), (380, 54778104), (456, 45648420), (480, 43365999), (570, 36518736), (608, 34236315), (684, 30432280), (720, 28910666), (760, 27389052), (855, 24345824), (912, 22824210), (1140, 18259368), (1368, 15216140), (1440, 14455333), (1520, 13694526), (1710, 12172912), (1824, 11412105), (2280, 9129684), (2736, 7608070), (3040, 6847263), (3420, 6086456), (4560, 4564842), (5472, 3804035), (6840, 3043228), (9120, 2282421), (13680, 1521614), (27360, 760807)]