2490180

素因数分解:

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

素因数の和:55

約数の個数: 144

約数和(自身を含む): 8937600

約数和(自身を除く): 6447420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 121, 132, 140, 147, 154, 165, 196, 210, 220, 231, 242, 245, 294, 308, 330, 343, 363, 385, 420, 462, 484, 490, 539, 588, 605, 660, 686, 726, 735, 770, 847, 924, 980, 1029, 1078, 1155, 1210, 1372, 1452, 1470, 1540, 1617, 1694, 1715, 1815, 2058, 2156, 2310, 2420, 2541, 2695, 2940, 3234, 3388, 3430, 3630, 3773, 4116, 4235, 4620, 5082, 5145, 5390, 5929, 6468, 6860, 7260, 7546, 8085, 8470, 10164, 10290, 10780, 11319, 11858, 12705, 15092, 16170, 16940, 17787, 18865, 20580, 22638, 23716, 25410, 29645, 32340, 35574, 37730, 41503, 45276, 50820, 56595, 59290, 71148, 75460, 83006, 88935, 113190, 118580, 124509, 166012, 177870, 207515, 226380, 249018, 355740, 415030, 498036, 622545, 830060, 1245090, 2490180]

約数ペア:

[(1, 2490180), (2, 1245090), (3, 830060), (4, 622545), (5, 498036), (6, 415030), (7, 355740), (10, 249018), (11, 226380), (12, 207515), (14, 177870), (15, 166012), (20, 124509), (21, 118580), (22, 113190), (28, 88935), (30, 83006), (33, 75460), (35, 71148), (42, 59290), (44, 56595), (49, 50820), (55, 45276), (60, 41503), (66, 37730), (70, 35574), (77, 32340), (84, 29645), (98, 25410), (105, 23716), (110, 22638), (121, 20580), (132, 18865), (140, 17787), (147, 16940), (154, 16170), (165, 15092), (196, 12705), (210, 11858), (220, 11319), (231, 10780), (242, 10290), (245, 10164), (294, 8470), (308, 8085), (330, 7546), (343, 7260), (363, 6860), (385, 6468), (420, 5929), (462, 5390), (484, 5145), (490, 5082), (539, 4620), (588, 4235), (605, 4116), (660, 3773), (686, 3630), (726, 3430), (735, 3388), (770, 3234), (847, 2940), (924, 2695), (980, 2541), (1029, 2420), (1078, 2310), (1155, 2156), (1210, 2058), (1372, 1815), (1452, 1715), (1470, 1694), (1540, 1617)]