4205840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2799

約数の個数: 40

約数和(自身を含む): 10296960

約数和(自身を除く): 6091120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2767, 5534, 11068, 13835, 22136, 27670, 44272, 52573, 55340, 105146, 110680, 210292, 221360, 262865, 420584, 525730, 841168, 1051460, 2102920, 4205840]

約数ペア:

[(1, 4205840), (2, 2102920), (4, 1051460), (5, 841168), (8, 525730), (10, 420584), (16, 262865), (19, 221360), (20, 210292), (38, 110680), (40, 105146), (76, 55340), (80, 52573), (95, 44272), (152, 27670), (190, 22136), (304, 13835), (380, 11068), (760, 5534), (1520, 2767)]