81361360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:716

約数の個数: 80

約数和(自身を含む): 199272960

約数和(自身を除く): 117911600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 53, 62, 80, 106, 124, 155, 212, 248, 265, 310, 424, 496, 530, 619, 620, 848, 1060, 1238, 1240, 1643, 2120, 2476, 2480, 3095, 3286, 4240, 4952, 6190, 6572, 8215, 9904, 12380, 13144, 16430, 19189, 24760, 26288, 32807, 32860, 38378, 49520, 65614, 65720, 76756, 95945, 131228, 131440, 153512, 164035, 191890, 262456, 307024, 328070, 383780, 524912, 656140, 767560, 1017017, 1312280, 1535120, 2034034, 2624560, 4068068, 5085085, 8136136, 10170170, 16272272, 20340340, 40680680, 81361360]

約数ペア:

[(1, 81361360), (2, 40680680), (4, 20340340), (5, 16272272), (8, 10170170), (10, 8136136), (16, 5085085), (20, 4068068), (31, 2624560), (40, 2034034), (53, 1535120), (62, 1312280), (80, 1017017), (106, 767560), (124, 656140), (155, 524912), (212, 383780), (248, 328070), (265, 307024), (310, 262456), (424, 191890), (496, 164035), (530, 153512), (619, 131440), (620, 131228), (848, 95945), (1060, 76756), (1238, 65720), (1240, 65614), (1643, 49520), (2120, 38378), (2476, 32860), (2480, 32807), (3095, 26288), (3286, 24760), (4240, 19189), (4952, 16430), (6190, 13144), (6572, 12380), (8215, 9904)]