51354940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 140767200

約数和(自身を除く): 89412260

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 49, 52, 58, 65, 70, 91, 98, 116, 130, 139, 140, 145, 182, 196, 203, 245, 260, 278, 290, 364, 377, 406, 455, 490, 556, 580, 637, 695, 754, 812, 910, 973, 980, 1015, 1274, 1390, 1421, 1508, 1807, 1820, 1885, 1946, 2030, 2548, 2639, 2780, 2842, 3185, 3614, 3770, 3892, 4031, 4060, 4865, 5278, 5684, 6370, 6811, 7105, 7228, 7540, 8062, 9035, 9730, 10556, 12649, 12740, 13195, 13622, 14210, 16124, 18070, 18473, 19460, 20155, 25298, 26390, 27244, 28217, 28420, 34055, 36140, 36946, 40310, 50596, 52403, 52780, 56434, 63245, 68110, 73892, 80620, 88543, 92365, 104806, 112868, 126490, 136220, 141085, 177086, 184730, 197519, 209612, 252980, 262015, 282170, 354172, 366821, 369460, 395038, 442715, 524030, 564340, 733642, 790076, 885430, 987595, 1048060, 1467284, 1770860, 1834105, 1975190, 2567747, 3668210, 3950380, 5135494, 7336420, 10270988, 12838735, 25677470, 51354940]

約数ペア:

[(1, 51354940), (2, 25677470), (4, 12838735), (5, 10270988), (7, 7336420), (10, 5135494), (13, 3950380), (14, 3668210), (20, 2567747), (26, 1975190), (28, 1834105), (29, 1770860), (35, 1467284), (49, 1048060), (52, 987595), (58, 885430), (65, 790076), (70, 733642), (91, 564340), (98, 524030), (116, 442715), (130, 395038), (139, 369460), (140, 366821), (145, 354172), (182, 282170), (196, 262015), (203, 252980), (245, 209612), (260, 197519), (278, 184730), (290, 177086), (364, 141085), (377, 136220), (406, 126490), (455, 112868), (490, 104806), (556, 92365), (580, 88543), (637, 80620), (695, 73892), (754, 68110), (812, 63245), (910, 56434), (973, 52780), (980, 52403), (1015, 50596), (1274, 40310), (1390, 36946), (1421, 36140), (1508, 34055), (1807, 28420), (1820, 28217), (1885, 27244), (1946, 26390), (2030, 25298), (2548, 20155), (2639, 19460), (2780, 18473), (2842, 18070), (3185, 16124), (3614, 14210), (3770, 13622), (3892, 13195), (4031, 12740), (4060, 12649), (4865, 10556), (5278, 9730), (5684, 9035), (6370, 8062), (6811, 7540), (7105, 7228)]