81631550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 144

約数和(自身を含む): 208392912

約数和(自身を除く): 126761362

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 49, 50, 55, 65, 70, 77, 91, 98, 110, 130, 143, 154, 175, 182, 233, 245, 275, 286, 325, 350, 385, 455, 466, 490, 539, 550, 637, 650, 715, 770, 910, 1001, 1078, 1165, 1225, 1274, 1430, 1631, 1925, 2002, 2275, 2330, 2450, 2563, 2695, 3029, 3185, 3262, 3575, 3850, 4550, 5005, 5126, 5390, 5825, 6058, 6370, 7007, 7150, 8155, 10010, 11417, 11650, 12815, 13475, 14014, 15145, 15925, 16310, 17941, 21203, 22834, 25025, 25630, 26950, 30290, 31850, 33319, 35035, 35882, 40775, 42406, 50050, 57085, 64075, 66638, 70070, 75725, 81550, 89705, 106015, 114170, 125587, 128150, 148421, 151450, 166595, 175175, 179410, 212030, 233233, 251174, 285425, 296842, 333190, 350350, 448525, 466466, 530075, 570850, 627935, 742105, 832975, 897050, 1060150, 1166165, 1255870, 1484210, 1632631, 1665950, 2332330, 3139675, 3265262, 3710525, 5830825, 6279350, 7421050, 8163155, 11661650, 16326310, 40815775, 81631550]

約数ペア:

[(1, 81631550), (2, 40815775), (5, 16326310), (7, 11661650), (10, 8163155), (11, 7421050), (13, 6279350), (14, 5830825), (22, 3710525), (25, 3265262), (26, 3139675), (35, 2332330), (49, 1665950), (50, 1632631), (55, 1484210), (65, 1255870), (70, 1166165), (77, 1060150), (91, 897050), (98, 832975), (110, 742105), (130, 627935), (143, 570850), (154, 530075), (175, 466466), (182, 448525), (233, 350350), (245, 333190), (275, 296842), (286, 285425), (325, 251174), (350, 233233), (385, 212030), (455, 179410), (466, 175175), (490, 166595), (539, 151450), (550, 148421), (637, 128150), (650, 125587), (715, 114170), (770, 106015), (910, 89705), (1001, 81550), (1078, 75725), (1165, 70070), (1225, 66638), (1274, 64075), (1430, 57085), (1631, 50050), (1925, 42406), (2002, 40775), (2275, 35882), (2330, 35035), (2450, 33319), (2563, 31850), (2695, 30290), (3029, 26950), (3185, 25630), (3262, 25025), (3575, 22834), (3850, 21203), (4550, 17941), (5005, 16310), (5126, 15925), (5390, 15145), (5825, 14014), (6058, 13475), (6370, 12815), (7007, 11650), (7150, 11417), (8155, 10010)]