1721000820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{372511}}^1$

素因数の和:372541

約数の個数: 96

約数和(自身を含む): 6007873536

約数和(自身を除く): 4286872716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 372511, 745022, 1117533, 1490044, 1862555, 2235066, 2607577, 3725110, 4097621, 4470132, 5215154, 5587665, 7450220, 7822731, 8195242, 10430308, 11175330, 12292863, 13037885, 15645462, 16390484, 20488105, 22350660, 24585726, 26075770, 28683347, 31290924, 39113655, 40976210, 49171452, 52151540, 57366694, 61464315, 78227310, 81952420, 86050041, 114733388, 122928630, 143416735, 156454620, 172100082, 245857260, 286833470, 344200164, 430250205, 573666940, 860500410, 1721000820]

約数ペア:

[(1, 1721000820), (2, 860500410), (3, 573666940), (4, 430250205), (5, 344200164), (6, 286833470), (7, 245857260), (10, 172100082), (11, 156454620), (12, 143416735), (14, 122928630), (15, 114733388), (20, 86050041), (21, 81952420), (22, 78227310), (28, 61464315), (30, 57366694), (33, 52151540), (35, 49171452), (42, 40976210), (44, 39113655), (55, 31290924), (60, 28683347), (66, 26075770), (70, 24585726), (77, 22350660), (84, 20488105), (105, 16390484), (110, 15645462), (132, 13037885), (140, 12292863), (154, 11175330), (165, 10430308), (210, 8195242), (220, 7822731), (231, 7450220), (308, 5587665), (330, 5215154), (385, 4470132), (420, 4097621), (462, 3725110), (660, 2607577), (770, 2235066), (924, 1862555), (1155, 1490044), (1540, 1117533), (2310, 745022), (4620, 372511)]