20181279105

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^2$

素因数の和:432

約数の個数: 144

約数和(自身を含む): 40604775120

約数和(自身を除く): 20423496015

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 89, 117, 151, 153, 195, 221, 255, 267, 445, 453, 585, 663, 755, 765, 801, 1105, 1157, 1335, 1359, 1513, 1963, 1989, 2265, 2567, 3315, 3471, 4005, 4539, 5785, 5889, 6795, 7565, 7701, 9815, 9945, 10413, 12835, 13439, 13617, 17355, 17667, 19669, 22695, 22801, 23103, 29445, 33371, 38505, 40317, 52065, 59007, 67195, 68085, 68403, 88335, 98345, 100113, 114005, 115515, 120951, 166855, 174707, 177021, 201585, 205209, 228463, 295035, 296413, 300339, 342015, 387617, 500565, 524121, 604755, 685389, 873535, 885105, 889239, 1026045, 1142315, 1162851, 1482065, 1501695, 1572363, 1938085, 2029289, 2056167, 2620605, 2667717, 2970019, 3426945, 3488553, 4446195, 5039021, 5814255, 6087867, 7861815, 8910057, 10146445, 10280835, 13338585, 14850095, 15117063, 17442765, 18263601, 25195105, 26380757, 26730171, 30439335, 34497913, 44550285, 45351189, 75585315, 79142271, 91318005, 103493739, 131903785, 133650855, 172489565, 226755945, 237426813, 310481217, 395711355, 448472869, 517468695, 1187134065, 1345418607, 1552406085, 2242364345, 4036255821, 6727093035, 20181279105]

約数ペア:

[(1, 20181279105), (3, 6727093035), (5, 4036255821), (9, 2242364345), (13, 1552406085), (15, 1345418607), (17, 1187134065), (39, 517468695), (45, 448472869), (51, 395711355), (65, 310481217), (85, 237426813), (89, 226755945), (117, 172489565), (151, 133650855), (153, 131903785), (195, 103493739), (221, 91318005), (255, 79142271), (267, 75585315), (445, 45351189), (453, 44550285), (585, 34497913), (663, 30439335), (755, 26730171), (765, 26380757), (801, 25195105), (1105, 18263601), (1157, 17442765), (1335, 15117063), (1359, 14850095), (1513, 13338585), (1963, 10280835), (1989, 10146445), (2265, 8910057), (2567, 7861815), (3315, 6087867), (3471, 5814255), (4005, 5039021), (4539, 4446195), (5785, 3488553), (5889, 3426945), (6795, 2970019), (7565, 2667717), (7701, 2620605), (9815, 2056167), (9945, 2029289), (10413, 1938085), (12835, 1572363), (13439, 1501695), (13617, 1482065), (17355, 1162851), (17667, 1142315), (19669, 1026045), (22695, 889239), (22801, 885105), (23103, 873535), (29445, 685389), (33371, 604755), (38505, 524121), (40317, 500565), (52065, 387617), (59007, 342015), (67195, 300339), (68085, 296413), (68403, 295035), (88335, 228463), (98345, 205209), (100113, 201585), (114005, 177021), (115515, 174707), (120951, 166855)]