64704880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42569}}^1$

素因数の和:42601

約数の個数: 40

約数和(自身を含む): 158360400

約数和(自身を除く): 93655520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42569, 85138, 170276, 212845, 340552, 425690, 681104, 808811, 851380, 1617622, 1702760, 3235244, 3405520, 4044055, 6470488, 8088110, 12940976, 16176220, 32352440, 64704880]

約数ペア:

[(1, 64704880), (2, 32352440), (4, 16176220), (5, 12940976), (8, 8088110), (10, 6470488), (16, 4044055), (19, 3405520), (20, 3235244), (38, 1702760), (40, 1617622), (76, 851380), (80, 808811), (95, 681104), (152, 425690), (190, 340552), (304, 212845), (380, 170276), (760, 85138), (1520, 42569)]