1721709080

素因数分解:

$2^3\times 5^1\times 7^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 192

約数和(自身を含む): 4891803840

約数和(自身を除く): 3170094760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 197, 245, 260, 280, 343, 364, 392, 394, 455, 490, 520, 637, 686, 728, 788, 910, 980, 985, 1274, 1372, 1379, 1576, 1715, 1820, 1960, 1970, 2401, 2548, 2561, 2744, 2758, 3185, 3430, 3640, 3940, 4459, 4802, 5096, 5122, 5516, 6370, 6860, 6895, 7880, 8918, 9604, 9653, 10244, 11032, 12005, 12740, 12805, 13720, 13790, 16807, 17836, 17927, 19208, 19306, 20488, 22295, 24010, 25480, 25610, 27580, 31213, 33614, 35672, 35854, 38612, 44590, 48020, 48265, 51220, 55160, 62426, 67228, 67571, 71708, 77224, 84035, 89180, 89635, 96040, 96530, 102440, 124852, 125489, 134456, 135142, 143416, 156065, 168070, 178360, 179270, 193060, 218491, 249704, 250978, 270284, 312130, 336140, 337855, 358540, 386120, 436982, 472997, 501956, 540568, 624260, 627445, 672280, 675710, 717080, 873964, 878423, 945994, 1003912, 1092455, 1248520, 1254890, 1351420, 1747928, 1756846, 1891988, 2184910, 2364985, 2509780, 2702840, 3310979, 3513692, 3783976, 4369820, 4392115, 4729970, 5019560, 6148961, 6621958, 7027384, 8739640, 8784230, 9459940, 12297922, 13243916, 16554895, 17568460, 18919880, 24595844, 26487832, 30744805, 33109790, 35136920, 43042727, 49191688, 61489610, 66219580, 86085454, 122979220, 132439160, 172170908, 215213635, 245958440, 344341816, 430427270, 860854540, 1721709080]

約数ペア:

[(1, 1721709080), (2, 860854540), (4, 430427270), (5, 344341816), (7, 245958440), (8, 215213635), (10, 172170908), (13, 132439160), (14, 122979220), (20, 86085454), (26, 66219580), (28, 61489610), (35, 49191688), (40, 43042727), (49, 35136920), (52, 33109790), (56, 30744805), (65, 26487832), (70, 24595844), (91, 18919880), (98, 17568460), (104, 16554895), (130, 13243916), (140, 12297922), (182, 9459940), (196, 8784230), (197, 8739640), (245, 7027384), (260, 6621958), (280, 6148961), (343, 5019560), (364, 4729970), (392, 4392115), (394, 4369820), (455, 3783976), (490, 3513692), (520, 3310979), (637, 2702840), (686, 2509780), (728, 2364985), (788, 2184910), (910, 1891988), (980, 1756846), (985, 1747928), (1274, 1351420), (1372, 1254890), (1379, 1248520), (1576, 1092455), (1715, 1003912), (1820, 945994), (1960, 878423), (1970, 873964), (2401, 717080), (2548, 675710), (2561, 672280), (2744, 627445), (2758, 624260), (3185, 540568), (3430, 501956), (3640, 472997), (3940, 436982), (4459, 386120), (4802, 358540), (5096, 337855), (5122, 336140), (5516, 312130), (6370, 270284), (6860, 250978), (6895, 249704), (7880, 218491), (8918, 193060), (9604, 179270), (9653, 178360), (10244, 168070), (11032, 156065), (12005, 143416), (12740, 135142), (12805, 134456), (13720, 125489), (13790, 124852), (16807, 102440), (17836, 96530), (17927, 96040), (19208, 89635), (19306, 89180), (20488, 84035), (22295, 77224), (24010, 71708), (25480, 67571), (25610, 67228), (27580, 62426), (31213, 55160), (33614, 51220), (35672, 48265), (35854, 48020), (38612, 44590)]