21206638880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1\times {\mathrm{641}}^1$

素因数の和:1043

約数の個数: 192

約数和(自身を含む): 58086927360

約数和(自身を除く): 36880288480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 109, 112, 140, 160, 218, 224, 271, 280, 436, 542, 545, 560, 641, 763, 872, 1084, 1090, 1120, 1282, 1355, 1526, 1744, 1897, 2168, 2180, 2564, 2710, 3052, 3205, 3488, 3794, 3815, 4336, 4360, 4487, 5128, 5420, 6104, 6410, 7588, 7630, 8672, 8720, 8974, 9485, 10256, 10840, 12208, 12820, 15176, 15260, 17440, 17948, 18970, 20512, 21680, 22435, 24416, 25640, 29539, 30352, 30520, 35896, 37940, 43360, 44870, 51280, 59078, 60704, 61040, 69869, 71792, 75880, 89740, 102560, 118156, 122080, 139738, 143584, 147695, 151760, 173711, 179480, 206773, 236312, 279476, 295390, 303520, 347422, 349345, 358960, 413546, 472624, 489083, 558952, 590780, 694844, 698690, 717920, 827092, 868555, 945248, 978166, 1033865, 1117904, 1181560, 1215977, 1389688, 1397380, 1654184, 1737110, 1956332, 2067730, 2235808, 2363120, 2431954, 2445415, 2779376, 2794760, 3308368, 3474220, 3912664, 4135460, 4726240, 4863908, 4890830, 5558752, 5589520, 6079885, 6616736, 6948440, 7825328, 8270920, 9727816, 9781660, 11179040, 12159770, 13896880, 15650656, 16541840, 18934499, 19455632, 19563320, 24319540, 27793760, 33083680, 37868998, 38911264, 39126640, 48639080, 75737996, 78253280, 94672495, 97278160, 132541493, 151475992, 189344990, 194556320, 265082986, 302951984, 378689980, 530165972, 605903968, 662707465, 757379960, 1060331944, 1325414930, 1514759920, 2120663888, 2650829860, 3029519840, 4241327776, 5301659720, 10603319440, 21206638880]

約数ペア:

[(1, 21206638880), (2, 10603319440), (4, 5301659720), (5, 4241327776), (7, 3029519840), (8, 2650829860), (10, 2120663888), (14, 1514759920), (16, 1325414930), (20, 1060331944), (28, 757379960), (32, 662707465), (35, 605903968), (40, 530165972), (56, 378689980), (70, 302951984), (80, 265082986), (109, 194556320), (112, 189344990), (140, 151475992), (160, 132541493), (218, 97278160), (224, 94672495), (271, 78253280), (280, 75737996), (436, 48639080), (542, 39126640), (545, 38911264), (560, 37868998), (641, 33083680), (763, 27793760), (872, 24319540), (1084, 19563320), (1090, 19455632), (1120, 18934499), (1282, 16541840), (1355, 15650656), (1526, 13896880), (1744, 12159770), (1897, 11179040), (2168, 9781660), (2180, 9727816), (2564, 8270920), (2710, 7825328), (3052, 6948440), (3205, 6616736), (3488, 6079885), (3794, 5589520), (3815, 5558752), (4336, 4890830), (4360, 4863908), (4487, 4726240), (5128, 4135460), (5420, 3912664), (6104, 3474220), (6410, 3308368), (7588, 2794760), (7630, 2779376), (8672, 2445415), (8720, 2431954), (8974, 2363120), (9485, 2235808), (10256, 2067730), (10840, 1956332), (12208, 1737110), (12820, 1654184), (15176, 1397380), (15260, 1389688), (17440, 1215977), (17948, 1181560), (18970, 1117904), (20512, 1033865), (21680, 978166), (22435, 945248), (24416, 868555), (25640, 827092), (29539, 717920), (30352, 698690), (30520, 694844), (35896, 590780), (37940, 558952), (43360, 489083), (44870, 472624), (51280, 413546), (59078, 358960), (60704, 349345), (61040, 347422), (69869, 303520), (71792, 295390), (75880, 279476), (89740, 236312), (102560, 206773), (118156, 179480), (122080, 173711), (139738, 151760), (143584, 147695)]