247934720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17609}}^1$

素因数の和:17641

約数の個数: 72

約数和(自身を含む): 647907120

約数和(自身を除く): 399972400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 17609, 35218, 70436, 88045, 140872, 176090, 193699, 281744, 352180, 387398, 563488, 704360, 774796, 968495, 1126976, 1408720, 1549592, 1936990, 2253952, 2817440, 3099184, 3873980, 4507904, 5634880, 6198368, 7747960, 11269760, 12396736, 15495920, 22539520, 24793472, 30991840, 49586944, 61983680, 123967360, 247934720]

約数ペア:

[(1, 247934720), (2, 123967360), (4, 61983680), (5, 49586944), (8, 30991840), (10, 24793472), (11, 22539520), (16, 15495920), (20, 12396736), (22, 11269760), (32, 7747960), (40, 6198368), (44, 5634880), (55, 4507904), (64, 3873980), (80, 3099184), (88, 2817440), (110, 2253952), (128, 1936990), (160, 1549592), (176, 1408720), (220, 1126976), (256, 968495), (320, 774796), (352, 704360), (440, 563488), (640, 387398), (704, 352180), (880, 281744), (1280, 193699), (1408, 176090), (1760, 140872), (2816, 88045), (3520, 70436), (7040, 35218), (14080, 17609)]