64630760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39409}}^1$

素因数の和:39461

約数の個数: 32

約数和(自身を含む): 148969800

約数和(自身を除く): 84339040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39409, 78818, 157636, 197045, 315272, 394090, 788180, 1576360, 1615769, 3231538, 6463076, 8078845, 12926152, 16157690, 32315380, 64630760]

約数ペア:

[(1, 64630760), (2, 32315380), (4, 16157690), (5, 12926152), (8, 8078845), (10, 6463076), (20, 3231538), (40, 1615769), (41, 1576360), (82, 788180), (164, 394090), (205, 315272), (328, 197045), (410, 157636), (820, 78818), (1640, 39409)]