18644080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 53916192

約数和(自身を除く): 35272112

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 169, 182, 197, 208, 260, 280, 338, 364, 394, 455, 520, 560, 676, 728, 788, 845, 910, 985, 1040, 1183, 1352, 1379, 1456, 1576, 1690, 1820, 1970, 2366, 2561, 2704, 2758, 3152, 3380, 3640, 3940, 4732, 5122, 5516, 5915, 6760, 6895, 7280, 7880, 9464, 10244, 11032, 11830, 12805, 13520, 13790, 15760, 17927, 18928, 20488, 22064, 23660, 25610, 27580, 33293, 35854, 40976, 47320, 51220, 55160, 66586, 71708, 89635, 94640, 102440, 110320, 133172, 143416, 166465, 179270, 204880, 233051, 266344, 286832, 332930, 358540, 466102, 532688, 665860, 717080, 932204, 1165255, 1331720, 1434160, 1864408, 2330510, 2663440, 3728816, 4661020, 9322040, 18644080]

約数ペア:

[(1, 18644080), (2, 9322040), (4, 4661020), (5, 3728816), (7, 2663440), (8, 2330510), (10, 1864408), (13, 1434160), (14, 1331720), (16, 1165255), (20, 932204), (26, 717080), (28, 665860), (35, 532688), (40, 466102), (52, 358540), (56, 332930), (65, 286832), (70, 266344), (80, 233051), (91, 204880), (104, 179270), (112, 166465), (130, 143416), (140, 133172), (169, 110320), (182, 102440), (197, 94640), (208, 89635), (260, 71708), (280, 66586), (338, 55160), (364, 51220), (394, 47320), (455, 40976), (520, 35854), (560, 33293), (676, 27580), (728, 25610), (788, 23660), (845, 22064), (910, 20488), (985, 18928), (1040, 17927), (1183, 15760), (1352, 13790), (1379, 13520), (1456, 12805), (1576, 11830), (1690, 11032), (1820, 10244), (1970, 9464), (2366, 7880), (2561, 7280), (2704, 6895), (2758, 6760), (3152, 5915), (3380, 5516), (3640, 5122), (3940, 4732)]