669816880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{440669}}^1$

素因数の和:440701

約数の個数: 40

約数和(自身を含む): 1639292400

約数和(自身を除く): 969475520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 440669, 881338, 1762676, 2203345, 3525352, 4406690, 7050704, 8372711, 8813380, 16745422, 17626760, 33490844, 35253520, 41863555, 66981688, 83727110, 133963376, 167454220, 334908440, 669816880]

約数ペア:

[(1, 669816880), (2, 334908440), (4, 167454220), (5, 133963376), (8, 83727110), (10, 66981688), (16, 41863555), (19, 35253520), (20, 33490844), (38, 17626760), (40, 16745422), (76, 8813380), (80, 8372711), (95, 7050704), (152, 4406690), (190, 3525352), (304, 2203345), (380, 1762676), (760, 881338), (1520, 440669)]