20903670405

素因数分解:

$3^6\times 5^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:399

約数の個数: 168

約数和(自身を含む): 40516084728

約数和(自身を除く): 19612414323

約数列:

[1, 3, 5, 9, 15, 23, 27, 37, 45, 69, 81, 111, 115, 135, 185, 207, 243, 293, 333, 345, 405, 529, 555, 621, 729, 851, 879, 999, 1035, 1215, 1465, 1587, 1665, 1863, 2553, 2637, 2645, 2997, 3105, 3645, 4255, 4395, 4761, 4995, 5589, 6739, 7659, 7911, 7935, 8991, 9315, 10841, 12765, 13185, 14283, 14985, 16767, 19573, 20217, 22977, 23733, 23805, 26973, 27945, 32523, 33695, 38295, 39555, 42849, 44955, 54205, 58719, 60651, 68931, 71199, 71415, 83835, 97569, 97865, 101085, 114885, 118665, 128547, 134865, 154997, 162615, 176157, 181953, 206793, 213597, 214245, 249343, 292707, 293595, 303255, 344655, 355995, 385641, 464991, 487845, 528471, 545859, 620379, 642735, 748029, 774985, 878121, 880785, 909765, 1033965, 1067985, 1246715, 1394973, 1463535, 1585413, 1637577, 1928205, 2244087, 2324955, 2634363, 2642355, 2729295, 3101895, 3740145, 4184919, 4390605, 4756239, 4912731, 5734889, 6732261, 6974865, 7903089, 7927065, 8187885, 11220435, 12554757, 13171815, 14268717, 17204667, 20196783, 20924595, 23781195, 24563655, 28674445, 33661305, 37664271, 39515445, 51614001, 60590349, 62773785, 71343585, 86023335, 100983915, 112992813, 154842003, 181771047, 188321355, 258070005, 302951745, 464526009, 564964065, 774210015, 908855235, 1393578027, 2322630045, 4180734081, 6967890135, 20903670405]

約数ペア:

[(1, 20903670405), (3, 6967890135), (5, 4180734081), (9, 2322630045), (15, 1393578027), (23, 908855235), (27, 774210015), (37, 564964065), (45, 464526009), (69, 302951745), (81, 258070005), (111, 188321355), (115, 181771047), (135, 154842003), (185, 112992813), (207, 100983915), (243, 86023335), (293, 71343585), (333, 62773785), (345, 60590349), (405, 51614001), (529, 39515445), (555, 37664271), (621, 33661305), (729, 28674445), (851, 24563655), (879, 23781195), (999, 20924595), (1035, 20196783), (1215, 17204667), (1465, 14268717), (1587, 13171815), (1665, 12554757), (1863, 11220435), (2553, 8187885), (2637, 7927065), (2645, 7903089), (2997, 6974865), (3105, 6732261), (3645, 5734889), (4255, 4912731), (4395, 4756239), (4761, 4390605), (4995, 4184919), (5589, 3740145), (6739, 3101895), (7659, 2729295), (7911, 2642355), (7935, 2634363), (8991, 2324955), (9315, 2244087), (10841, 1928205), (12765, 1637577), (13185, 1585413), (14283, 1463535), (14985, 1394973), (16767, 1246715), (19573, 1067985), (20217, 1033965), (22977, 909765), (23733, 880785), (23805, 878121), (26973, 774985), (27945, 748029), (32523, 642735), (33695, 620379), (38295, 545859), (39555, 528471), (42849, 487845), (44955, 464991), (54205, 385641), (58719, 355995), (60651, 344655), (68931, 303255), (71199, 293595), (71415, 292707), (83835, 249343), (97569, 214245), (97865, 213597), (101085, 206793), (114885, 181953), (118665, 176157), (128547, 162615), (134865, 154997)]