80976640

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1543}}^1$

素因数の和:1605

約数の個数: 72

約数和(自身を含む): 198823968

約数和(自身を除く): 117847328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1543, 1640, 2624, 3086, 3280, 5248, 6172, 6560, 7715, 10496, 12344, 13120, 15430, 24688, 26240, 30860, 49376, 52480, 61720, 63263, 98752, 123440, 126526, 197504, 246880, 253052, 316315, 395008, 493760, 506104, 632630, 987520, 1012208, 1265260, 1975040, 2024416, 2530520, 4048832, 5061040, 8097664, 10122080, 16195328, 20244160, 40488320, 80976640]

約数ペア:

[(1, 80976640), (2, 40488320), (4, 20244160), (5, 16195328), (8, 10122080), (10, 8097664), (16, 5061040), (20, 4048832), (32, 2530520), (40, 2024416), (41, 1975040), (64, 1265260), (80, 1012208), (82, 987520), (128, 632630), (160, 506104), (164, 493760), (205, 395008), (256, 316315), (320, 253052), (328, 246880), (410, 197504), (640, 126526), (656, 123440), (820, 98752), (1280, 63263), (1312, 61720), (1543, 52480), (1640, 49376), (2624, 30860), (3086, 26240), (3280, 24688), (5248, 15430), (6172, 13120), (6560, 12344), (7715, 10496)]