81203200

素因数分解:

$2^{12}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 156

約数和(自身を含む): 220403428

約数和(自身を除く): 139200228

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 61, 64, 65, 80, 100, 104, 122, 128, 130, 160, 200, 208, 244, 256, 260, 305, 320, 325, 400, 416, 488, 512, 520, 610, 640, 650, 793, 800, 832, 976, 1024, 1040, 1220, 1280, 1300, 1525, 1586, 1600, 1664, 1952, 2048, 2080, 2440, 2560, 2600, 3050, 3172, 3200, 3328, 3904, 3965, 4096, 4160, 4880, 5120, 5200, 6100, 6344, 6400, 6656, 7808, 7930, 8320, 9760, 10240, 10400, 12200, 12688, 12800, 13312, 15616, 15860, 16640, 19520, 19825, 20480, 20800, 24400, 25376, 25600, 26624, 31232, 31720, 33280, 39040, 39650, 41600, 48800, 50752, 51200, 53248, 62464, 63440, 66560, 78080, 79300, 83200, 97600, 101504, 102400, 124928, 126880, 133120, 156160, 158600, 166400, 195200, 203008, 249856, 253760, 266240, 312320, 317200, 332800, 390400, 406016, 507520, 624640, 634400, 665600, 780800, 812032, 1015040, 1249280, 1268800, 1331200, 1561600, 1624064, 2030080, 2537600, 3123200, 3248128, 4060160, 5075200, 6246400, 8120320, 10150400, 16240640, 20300800, 40601600, 81203200]

約数ペア:

[(1, 81203200), (2, 40601600), (4, 20300800), (5, 16240640), (8, 10150400), (10, 8120320), (13, 6246400), (16, 5075200), (20, 4060160), (25, 3248128), (26, 3123200), (32, 2537600), (40, 2030080), (50, 1624064), (52, 1561600), (61, 1331200), (64, 1268800), (65, 1249280), (80, 1015040), (100, 812032), (104, 780800), (122, 665600), (128, 634400), (130, 624640), (160, 507520), (200, 406016), (208, 390400), (244, 332800), (256, 317200), (260, 312320), (305, 266240), (320, 253760), (325, 249856), (400, 203008), (416, 195200), (488, 166400), (512, 158600), (520, 156160), (610, 133120), (640, 126880), (650, 124928), (793, 102400), (800, 101504), (832, 97600), (976, 83200), (1024, 79300), (1040, 78080), (1220, 66560), (1280, 63440), (1300, 62464), (1525, 53248), (1586, 51200), (1600, 50752), (1664, 48800), (1952, 41600), (2048, 39650), (2080, 39040), (2440, 33280), (2560, 31720), (2600, 31232), (3050, 26624), (3172, 25600), (3200, 25376), (3328, 24400), (3904, 20800), (3965, 20480), (4096, 19825), (4160, 19520), (4880, 16640), (5120, 15860), (5200, 15616), (6100, 13312), (6344, 12800), (6400, 12688), (6656, 12200), (7808, 10400), (7930, 10240), (8320, 9760)]