639499484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4937}}^1$

素因数の和:5054

約数の個数: 48

約数和(自身を含む): 1254331008

約数和(自身を除く): 614831524

約数列:

[1, 2, 4, 13, 26, 47, 52, 53, 94, 106, 188, 212, 611, 689, 1222, 1378, 2444, 2491, 2756, 4937, 4982, 9874, 9964, 19748, 32383, 64181, 64766, 128362, 129532, 232039, 256724, 261661, 464078, 523322, 928156, 1046644, 3016507, 3401593, 6033014, 6803186, 12066028, 12298067, 13606372, 24596134, 49192268, 159874871, 319749742, 639499484]

約数ペア:

[(1, 639499484), (2, 319749742), (4, 159874871), (13, 49192268), (26, 24596134), (47, 13606372), (52, 12298067), (53, 12066028), (94, 6803186), (106, 6033014), (188, 3401593), (212, 3016507), (611, 1046644), (689, 928156), (1222, 523322), (1378, 464078), (2444, 261661), (2491, 256724), (2756, 232039), (4937, 129532), (4982, 128362), (9874, 64766), (9964, 64181), (19748, 32383)]