71521280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:315

約数の個数: 88

約数和(自身を含む): 175141320

約数和(自身を除く): 103620040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 229, 244, 256, 305, 320, 458, 488, 512, 610, 640, 916, 976, 1024, 1145, 1220, 1280, 1832, 1952, 2290, 2440, 2560, 3664, 3904, 4580, 4880, 5120, 7328, 7808, 9160, 9760, 13969, 14656, 15616, 18320, 19520, 27938, 29312, 31232, 36640, 39040, 55876, 58624, 62464, 69845, 73280, 78080, 111752, 117248, 139690, 146560, 156160, 223504, 234496, 279380, 293120, 312320, 447008, 558760, 586240, 894016, 1117520, 1172480, 1788032, 2235040, 3576064, 4470080, 7152128, 8940160, 14304256, 17880320, 35760640, 71521280]

約数ペア:

[(1, 71521280), (2, 35760640), (4, 17880320), (5, 14304256), (8, 8940160), (10, 7152128), (16, 4470080), (20, 3576064), (32, 2235040), (40, 1788032), (61, 1172480), (64, 1117520), (80, 894016), (122, 586240), (128, 558760), (160, 447008), (229, 312320), (244, 293120), (256, 279380), (305, 234496), (320, 223504), (458, 156160), (488, 146560), (512, 139690), (610, 117248), (640, 111752), (916, 78080), (976, 73280), (1024, 69845), (1145, 62464), (1220, 58624), (1280, 55876), (1832, 39040), (1952, 36640), (2290, 31232), (2440, 29312), (2560, 27938), (3664, 19520), (3904, 18320), (4580, 15616), (4880, 14656), (5120, 13969), (7328, 9760), (7808, 9160)]