81464460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{229}}^1$

素因数の和:277

約数の個数: 216

約数和(自身を含む): 292929840

約数和(自身を除く): 211465380

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, 229, 231, 242, 245, 294, 308, 330, 363, 385, 420, 458, 462, 484, 490, 539, 588, 605, 660, 687, 726, 735, 770, 847, 916, 924, 980, 1078, 1145, 1155, 1210, 1374, 1452, 1470, 1540, 1603, 1617, 1694, 1815, 2156, 2290, 2310, 2420, 2519, 2541, 2695, 2748, 2940, 3206, 3234, 3388, 3435, 3630, 4235, 4580, 4620, 4809, 5038, 5082, 5390, 5929, 6412, 6468, 6870, 7260, 7557, 8015, 8085, 8470, 9618, 10076, 10164, 10780, 11221, 11858, 12595, 12705, 13740, 15114, 16030, 16170, 16940, 17633, 17787, 19236, 22442, 23716, 24045, 25190, 25410, 27709, 29645, 30228, 32060, 32340, 33663, 35266, 35574, 37785, 44884, 48090, 50380, 50820, 52899, 55418, 56105, 59290, 67326, 70532, 71148, 75570, 83127, 88165, 88935, 96180, 105798, 110836, 112210, 118580, 123431, 134652, 138545, 151140, 166254, 168315, 176330, 177870, 193963, 211596, 224420, 246862, 264495, 277090, 332508, 336630, 352660, 355740, 370293, 387926, 415635, 493724, 528990, 554180, 581889, 617155, 673260, 740586, 775852, 831270, 969815, 1057980, 1163778, 1234310, 1357741, 1481172, 1662540, 1851465, 1939630, 2327556, 2468620, 2715482, 2909445, 3702930, 3879260, 4073223, 5430964, 5818890, 6788705, 7405860, 8146446, 11637780, 13577410, 16292892, 20366115, 27154820, 40732230, 81464460]

約数ペア:

[(1, 81464460), (2, 40732230), (3, 27154820), (4, 20366115), (5, 16292892), (6, 13577410), (7, 11637780), (10, 8146446), (11, 7405860), (12, 6788705), (14, 5818890), (15, 5430964), (20, 4073223), (21, 3879260), (22, 3702930), (28, 2909445), (30, 2715482), (33, 2468620), (35, 2327556), (42, 1939630), (44, 1851465), (49, 1662540), (55, 1481172), (60, 1357741), (66, 1234310), (70, 1163778), (77, 1057980), (84, 969815), (98, 831270), (105, 775852), (110, 740586), (121, 673260), (132, 617155), (140, 581889), (147, 554180), (154, 528990), (165, 493724), (196, 415635), (210, 387926), (220, 370293), (229, 355740), (231, 352660), (242, 336630), (245, 332508), (294, 277090), (308, 264495), (330, 246862), (363, 224420), (385, 211596), (420, 193963), (458, 177870), (462, 176330), (484, 168315), (490, 166254), (539, 151140), (588, 138545), (605, 134652), (660, 123431), (687, 118580), (726, 112210), (735, 110836), (770, 105798), (847, 96180), (916, 88935), (924, 88165), (980, 83127), (1078, 75570), (1145, 71148), (1155, 70532), (1210, 67326), (1374, 59290), (1452, 56105), (1470, 55418), (1540, 52899), (1603, 50820), (1617, 50380), (1694, 48090), (1815, 44884), (2156, 37785), (2290, 35574), (2310, 35266), (2420, 33663), (2519, 32340), (2541, 32060), (2695, 30228), (2748, 29645), (2940, 27709), (3206, 25410), (3234, 25190), (3388, 24045), (3435, 23716), (3630, 22442), (4235, 19236), (4580, 17787), (4620, 17633), (4809, 16940), (5038, 16170), (5082, 16030), (5390, 15114), (5929, 13740), (6412, 12705), (6468, 12595), (6870, 11858), (7260, 11221), (7557, 10780), (8015, 10164), (8085, 10076), (8470, 9618)]