78321810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:328

約数の個数: 128

約数和(自身を含む): 226934784

約数和(自身を除く): 148612974

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 53, 62, 70, 93, 105, 106, 155, 159, 186, 210, 217, 227, 265, 310, 318, 371, 434, 454, 465, 530, 651, 681, 742, 795, 930, 1085, 1113, 1135, 1302, 1362, 1589, 1590, 1643, 1855, 2170, 2226, 2270, 3178, 3255, 3286, 3405, 3710, 4767, 4929, 5565, 6510, 6810, 7037, 7945, 8215, 9534, 9858, 11130, 11501, 12031, 14074, 15890, 16430, 21111, 23002, 23835, 24062, 24645, 34503, 35185, 36093, 42222, 47670, 49259, 49290, 57505, 60155, 69006, 70370, 72186, 84217, 98518, 105555, 115010, 120310, 147777, 168434, 172515, 180465, 211110, 246295, 252651, 295554, 345030, 360930, 372961, 421085, 492590, 505302, 738885, 745922, 842170, 1118883, 1263255, 1477770, 1864805, 2237766, 2526510, 2610727, 3729610, 5221454, 5594415, 7832181, 11188830, 13053635, 15664362, 26107270, 39160905, 78321810]

約数ペア:

[(1, 78321810), (2, 39160905), (3, 26107270), (5, 15664362), (6, 13053635), (7, 11188830), (10, 7832181), (14, 5594415), (15, 5221454), (21, 3729610), (30, 2610727), (31, 2526510), (35, 2237766), (42, 1864805), (53, 1477770), (62, 1263255), (70, 1118883), (93, 842170), (105, 745922), (106, 738885), (155, 505302), (159, 492590), (186, 421085), (210, 372961), (217, 360930), (227, 345030), (265, 295554), (310, 252651), (318, 246295), (371, 211110), (434, 180465), (454, 172515), (465, 168434), (530, 147777), (651, 120310), (681, 115010), (742, 105555), (795, 98518), (930, 84217), (1085, 72186), (1113, 70370), (1135, 69006), (1302, 60155), (1362, 57505), (1589, 49290), (1590, 49259), (1643, 47670), (1855, 42222), (2170, 36093), (2226, 35185), (2270, 34503), (3178, 24645), (3255, 24062), (3286, 23835), (3405, 23002), (3710, 21111), (4767, 16430), (4929, 15890), (5565, 14074), (6510, 12031), (6810, 11501), (7037, 11130), (7945, 9858), (8215, 9534)]