81676140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2137}}^1$

素因数の和:2176

約数の個数: 144

約数和(自身を含む): 286628832

約数和(自身を除く): 204952692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2137, 2548, 2730, 2940, 3185, 3822, 4274, 5460, 6370, 6411, 7644, 8548, 9555, 10685, 12740, 12822, 14959, 19110, 21370, 25644, 27781, 29918, 32055, 38220, 42740, 44877, 55562, 59836, 64110, 74795, 83343, 89754, 104713, 111124, 128220, 138905, 149590, 166686, 179508, 194467, 209426, 224385, 277810, 299180, 314139, 333372, 388934, 416715, 418852, 448770, 523565, 555620, 583401, 628278, 777868, 833430, 897540, 972335, 1047130, 1166802, 1256556, 1361269, 1570695, 1666860, 1944670, 2094260, 2333604, 2722538, 2917005, 3141390, 3889340, 4083807, 5445076, 5834010, 6282780, 6806345, 8167614, 11668020, 13612690, 16335228, 20419035, 27225380, 40838070, 81676140]

約数ペア:

[(1, 81676140), (2, 40838070), (3, 27225380), (4, 20419035), (5, 16335228), (6, 13612690), (7, 11668020), (10, 8167614), (12, 6806345), (13, 6282780), (14, 5834010), (15, 5445076), (20, 4083807), (21, 3889340), (26, 3141390), (28, 2917005), (30, 2722538), (35, 2333604), (39, 2094260), (42, 1944670), (49, 1666860), (52, 1570695), (60, 1361269), (65, 1256556), (70, 1166802), (78, 1047130), (84, 972335), (91, 897540), (98, 833430), (105, 777868), (130, 628278), (140, 583401), (147, 555620), (156, 523565), (182, 448770), (195, 418852), (196, 416715), (210, 388934), (245, 333372), (260, 314139), (273, 299180), (294, 277810), (364, 224385), (390, 209426), (420, 194467), (455, 179508), (490, 166686), (546, 149590), (588, 138905), (637, 128220), (735, 111124), (780, 104713), (910, 89754), (980, 83343), (1092, 74795), (1274, 64110), (1365, 59836), (1470, 55562), (1820, 44877), (1911, 42740), (2137, 38220), (2548, 32055), (2730, 29918), (2940, 27781), (3185, 25644), (3822, 21370), (4274, 19110), (5460, 14959), (6370, 12822), (6411, 12740), (7644, 10685), (8548, 9555)]