257681040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56509}}^1$

素因数の和:56544

約数の個数: 80

約数和(自身を含む): 840868800

約数和(自身を除く): 583187760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 56509, 113018, 169527, 226036, 282545, 339054, 452072, 565090, 678108, 847635, 904144, 1073671, 1130180, 1356216, 1695270, 2147342, 2260360, 2712432, 3221013, 3390540, 4294684, 4520720, 5368355, 6442026, 6781080, 8589368, 10736710, 12884052, 13562160, 16105065, 17178736, 21473420, 25768104, 32210130, 42946840, 51536208, 64420260, 85893680, 128840520, 257681040]

約数ペア:

[(1, 257681040), (2, 128840520), (3, 85893680), (4, 64420260), (5, 51536208), (6, 42946840), (8, 32210130), (10, 25768104), (12, 21473420), (15, 17178736), (16, 16105065), (19, 13562160), (20, 12884052), (24, 10736710), (30, 8589368), (38, 6781080), (40, 6442026), (48, 5368355), (57, 4520720), (60, 4294684), (76, 3390540), (80, 3221013), (95, 2712432), (114, 2260360), (120, 2147342), (152, 1695270), (190, 1356216), (228, 1130180), (240, 1073671), (285, 904144), (304, 847635), (380, 678108), (456, 565090), (570, 452072), (760, 339054), (912, 282545), (1140, 226036), (1520, 169527), (2280, 113018), (4560, 56509)]