81591365120

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1028117}}^1$

素因数の和:1028171

約数の個数: 80

約数和(自身を含む): 201938825088

約数和(自身を除く): 120347459968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 39680, 79360, 1028117, 2056234, 4112468, 5140585, 8224936, 10281170, 16449872, 20562340, 31871627, 32899744, 41124680, 63743254, 65799488, 82249360, 127486508, 131598976, 159358135, 164498720, 254973016, 263197952, 318716270, 328997440, 509946032, 526395904, 637432540, 657994880, 1019892064, 1274865080, 1315989760, 2039784128, 2549730160, 2631979520, 4079568256, 5099460320, 8159136512, 10198920640, 16318273024, 20397841280, 40795682560, 81591365120]

約数ペア:

[(1, 81591365120), (2, 40795682560), (4, 20397841280), (5, 16318273024), (8, 10198920640), (10, 8159136512), (16, 5099460320), (20, 4079568256), (31, 2631979520), (32, 2549730160), (40, 2039784128), (62, 1315989760), (64, 1274865080), (80, 1019892064), (124, 657994880), (128, 637432540), (155, 526395904), (160, 509946032), (248, 328997440), (256, 318716270), (310, 263197952), (320, 254973016), (496, 164498720), (512, 159358135), (620, 131598976), (640, 127486508), (992, 82249360), (1240, 65799488), (1280, 63743254), (1984, 41124680), (2480, 32899744), (2560, 31871627), (3968, 20562340), (4960, 16449872), (7936, 10281170), (9920, 8224936), (15872, 5140585), (19840, 4112468), (39680, 2056234), (79360, 1028117)]